Magnetic Effects of Current and Magnetism — practice questions
131 curated practice questions from Magnetic Effects of Current and Magnetism (Physics JEE Advanced, NTA Exams) — 45 medium, 86 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- An infinitely long cylinder is kept parallel to a uniform magnetic field B directed along positive z axis. The…
- Statement-1 : A charged particle is moving in a circular path with constant speed in uniform magnetic field .If we…
- A current carrying rectangular coil is placed in a uniform magnetic field. In which orientation, the coil will not tend…
- A particle of charge per unit mass α is released from origin with a velocity of v = v _ 0 i in uniform magnetic field B…
- In figure, the conductors carry equal currents I. All straight segments are very long and two circular loops have equal…
- A rigid wire loop of square shape having side of length L and resistance R is moving along the x -axis with a constant…
- A circular loop of radius R , carrying current I , lies in x-y plane with its centre at origin. The total magnetic flux…
- If a charged particle kept at rest experience an electromagnetic force then
- A rigid circular loop has a radius of 0.20 m and is in the x-y plane. A clockwise current I is carried by the loop, as…
- Two particles, each of mass m and charge q, are attached to the two ends of a light rigid rod of length 2R. The rod is…
- An ionized gas contains both positive and negative ions. If it is subjected simultaneously to an electric field along…
- Figure shows the cross-sectional view of the hollow cylindrical conductor with inner radius ‘R’ and outer radius ‘2R’…
- A battery is connected between two pints A and B on the circumference of a uniform conducting ring of radius r and…
- H + , He + and O ++ all having the same kinetic energy pass through a region in which there is a uniform magnetic field…
- An electron enters a region where electrostatic field is 20 N / C and magnetic field is 5 T . If electron passes…
- An electron and a proton are moving on straight parallel paths with same velocity. They enter a semi-infinite region of…
- Statement-1 : Cyclotron is a device which is used to accelerate the positive ions. Statement-2 : Cyclotron frequency…
- Advanced countries are making use of powerful electromagnets to move trains at very high speed. These trains are called…
- Two particles A and B of masses m A and m B respectively and having the same charge are moving in a plane. A uniform…
- A proton moving with a constant velocity passes through a region of space without any change in its velocity. If E and…
- From a cylinder of radius R, a cylinder of radius R/2 is removed, as shown. Current flowing in the remaining cylinder…
- A conducting circular loop of radius r carries a constant current i . It is placed in a uniform magnetic field such…
- A wire is bent into shape as shown in figure and magnetic field is measured at P 1 when current in wire is I, the same…
- A current I flows along the length of an infinitely long, straight, thin-walled pipe. Then
- When a proton has velocity v =(2 i +3 j ) 10^ 6 ~m / s it experiences a force of F =-1.28 10^ -13 k ~N .When its…
- A wire is formed into a shape of two half circles connected by equal length sections as shown in figure. A current…
- If a proton, deutron and - particle on being accelerated by the same potential difference, enter perpendicular to the…
- An electron ( q = 1.6 × 10 –19 C ) is moving at right angle to the uniform magnetic field 3.534 × 10 –5 T . The time…
- A long insulated copper wire is closely wound as a spiral of N turns. The spiral has inner radius a and outer radius b…
- A particle of charge q and mass m moving with a velocity v along the x -axis enters the region x > 0 with uniform…
- A circular coil of radius R and N turns has negligible resistance. As shown in the schematic figure, its two ends are…
- A current I flows along the length of an infinitely long, straight, thin-walled pipe. Then
- The ratio of the magnetic field at the centre of a current carrying circular wire and the magnetic field at the centre…
- A conducting loop, carrying a current I , is placed in a uniform magnetic field pointing into the plane of the paper as…
- If a charge particle goes with uniform velocity in a region containing electric and magnetic fields
- An elastic circular wire of length l carries a current I. It is placed in a uniform magnetic field B (Out of paper)…
- A magnetic field B=B_ 0 j exists in the region a x a and B=-B_ 0 j in the region 2 a x a , where B 0 is a positive…
- A steady current I flows along an infinitely long hollow cylindrical conductor of radius R . This cylinder is placed…
- A current i flows through an infinitely long wire having infinite bends as shown. The radius of first curved section is…
- A rigid circular loop has a radius of 0.20 m and is in the x-y plane. A clockwise current I is carried by the loop, as…
- A proton accelerated by a potential difference 500 KV moves though a transverse magnetic field of 0.51 T as shown in…
- A particle having a charge q and mass m is projected from origin with velocity v =v_ 0 i in a uniform magnetic field B…
- A uniform conducting wire ABC has a mass of 10 g. A current of 2 A flows through it. The wire is kept in a uniform…
- Two circular coils X and Y have equal number of turns and carry equal currents in the same sense and subtend same angle…
- Two identical charged particles enter into a uniform magnetic field with same speed but at angle 30° and 60° with…
- A particle of charge q and mass m moves in a circular orbit of radius r with angular speed w . The ratio of the…
- An electron is moving along the positive X-axis. You want to apply a magnetic field for a short time so that the…
- H + , He + and O 2+ all having the same kinetic energy pass through a region in which there is a uniform magnetic field…
- A charged particle moves in uniform magnetic field. The velocity of the particle at some instant makes an acute angle…
- A uniform magnetic field B exists in the region between x = 0 and (region 2 in the figure) pointing normally into the…
- What is the magnetic field at O due to current carrying long wire, forming a loop as shown in figure?
- An electron and a proton enter region of uniform magnetic field in a direction at right angles to the field with the…
- An infinitely long wire, located on the z -axis, carries a current I along the + z -direction and produces the magnetic…
- A proton (mass m and charge + e ) and an - particle (mass 4 m and charge +2 e ) are projected with the same kinetic…
- A thin circular wire carrying a current I has a magnetic moment M. The shape of the wire is changed to a square and it…
- Two ions have equal masses but one is singly ionized and the other is doubly ionized .They are projected from the same…
- Statement-1 : When a charged particle is fired in a magnetic field the radius of the circular path is directly…
- A particle having a charge q and mass m is projected from origin with velocity v =v_ 0 i in a uniform magnetic field B…
- A hollow tube is carrying an electric current along its length distributed uniformly over its surface. The magnetic…
- A wire of length L metre carrying a current of I ampere is bent in the form of a circle. Its magnitude of magnetic…
- A circular current carrying coil has a radius R. The distance from the centre of the coil on the axis where the…
- For a positively charged particle moving in a x - y plane initially along the x -axis, there is a sudden change in its…
- Which of the following magnetic materials are affected by the change in their temperature ?
- Statement-1 : A proton moving vertically upwards enters a magnetic field directed towards South. It will be deflected…
- A rigid circular loop has a radius of 0.20 m and is in the x-y plane. A clockwise current I is carried by the loop, as…
- A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon
- A proton moving with a constant velocity passes through a region of space without any change in its velocity. If E and…
- A thin flexible wire of length L is connected to two adjacent fixed points and carries a current I in the clockwise…
- A long straight wire along the z -axis carries a current I in the negative z direction. The magnetic vector field at a…
- The unit vectors i , j and k are as shown below. What will be the magnetic field at O in the following figure
- Two infinitely long straight wires lie in the xy -plane along the lines x = ± R . The wire located at x = + R carries a…
- An infinitely long conductor PQR is bent to form a right angle as shown in figure. A current I flows through PQR . The…
- A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of…
- Statement-1 : The magnetic field at the ends of a very long solenoid carrying current is half of that at the centre…
- A neutron, a proton and an electron and alpha particle enter a region of constant magnetic field with equal velocities…
- An infinitely long hollow conducting cylinder with inner radius R /2 and outer radius R carries a uniform current…
- Statement-1: Two long parallel conductors carrying currents in the same direction experience a force of attraction…
- An infinitely long, straight conductor AB is fixed and a current is passed through it. Another movable straight wire CD…
- A particle of mass m and charge q moving with velocity V enters region II normal to the boundary as shown in the…
- A particle of charge q and mass m is moving along the x-axis with a velocity v and enters a region of electric field E…
- A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and…
- Which one of the following options represents the magnetic field at O due to the current flowing in the given wire…
- A particle having a charge q and mass m is projected from origin with velocity v =v_ 0 i in a uniform magnetic field B…
- A particle of charge +q and mass m moving under the influence of a uniform electric field E i and uniform magnetic…
- A charged particle q enters a region of uniform magnetic field B (directed out of page as shown) and is deflected d…
- Statement-1 : A charged particle is projected into a region of magnetic field with certain speed. The kinetic energy of…
- The correct curve between the magnetic induction (B) along the axis of a long solenoid due to current flow i in it and…
- A current of 5 ampere is flowing in a wire of length 1.5 metres. A force of 7.5 N acts on it when it is placed in a…
- A beam of singly ionized atoms of carbon each charge +e all have the same speed and enter a mass spectrometer, as shown…
- Statement-1 : A magnetic field interacts with a moving charge and not with stationary charge. Statement-2 : A moving…
- A long conductor of radius R carries a current uniformly distributed over its cross-section
- A special metal S conducts electricity without any resistance. A closed wire loop, made of S , does not allow any…
- In a thin rectangular metallic strip a constant current I flows along the positive x -direction, as shown in the…
- A non-conducting ring with radius of 10 cm is uniformly charged with total positive charge of 10 µC. The ring rotates…
- Same current i = 2 A is flowing in a wire frame as shown in figure. The frame is a combination of two equilateral…
- An electron is moving along positive x-axis. You want to apply a magnetic field for a short time so that electron may…
- Two very long straight parallel wires carry steady currents I and –I respectively. The distance between the wires is d…
- The magnetic field at the centre of a circular coil of radius r is π times that due to a long straight wire at a…
- A compass needle which is allowed to move in a horizontal plane is taken to an earth magnetic pole. Which of the…
- Velocity and acceleration vector of a charged particle moving in a magnetic field at some instant are v =3 i +3 j and…
- A long current carrying wire, carrying current I 1 such that I 1 is flowing out from the plane of paper is placed at O…
- A 100 turn closely wound circular coil of radius 10 cm carries a current of 3.2 ampere .The moment of inertia of the…
- A steady current I flows along an infinitely long hollow cylindrical conductor of radius R. This cylinder is placed…
- Statement-1 : The sensitivity of a moving coil galvanometer is increased by placing a suitable magnetic material as a…
- What is the value of the magnetic field induction at the point P mentioned in the figure?
- A conductor (shown in the figure) carrying constant current I is kept in the x-y plane in a uniform magnetic field If F…
- Statement-1 : A linear solenoid carrying current is equivalent to a bar magnet. Statement-2 : The magnetic lines of…
- Statement-1 : Magnetic field at a point on the surface of long cylindrical wire is maximum. Statement-2 : For any other…
- Two particles X and Y having equal charges, after being accelerated through the same potential difference, enter a…
- Statement-1 : The poles of a magnet cannot be separated by breaking into two pieces. Statement-2 : When magnet is…
- A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of…
- Two very long, straight, parallel wires carry steady currents I and – I respectively. The distance between the wires is…
- A particle of mass m and charge q moves with a constant velocity v along the positive x direction. It enters a region…
- A thin wire of length is carrying a constant current. The wire is bent to form a circular coil. If radius of the…
- A particle with charge q , moving with a momentum p, enters a uniform magnetic field normally. The magnetic field has…
- Two concentric circular loops, one of radius R and the other of radius 2 R , lie in the xy -plane with the origin as…
- A wire of length 1 m placed in x-z plane carries a current of 1 ampere .The coefficient of friction between the wire…
- Two ions having masses in the ratio 1 : 1 and charges 1 : 2 are projected into uniform magnetic field perpendicular to…
- Consider a current carrying loop shown in figure formed by radial lines and segments of circle whose centers are at…
- A non-planar loop of conducting wire carrying a current I is placed as shown in the figure. Each of the straight…
- A proton, a deuteron and an α-particle having the same kinetic energy are moving in circular trajectories in a constant…
- A particle of mass M and positive charge Q , moving with a constant velocity enters a region of uniform static magnetic…
- A thin stiff insulatedmetal wire is bent into a circular loop with its two ends extending tangentially from the same…
- An electron travelling with a speed u along the positive x -axis enters into a region of magnetic field where B=-B_ 0 k…
- A charged particle is released from rest in a region of steady and uniform electric and magnetic fields which are…
- A rectangular loop carrying a current i is placed in a uniform magnetic field B . The area enclosed by the loop is A …
- A charge particle is projected in the magnetic field of (6 i -5 j ) 10^ -3 ~T . The acceleration of the particle is…
- Figure shows a square loop ABCD with edge length a . The resistance of the wire ABC is r and that of ADC is 2 r . The…
- Two long parallel wires carry currents I 1 =3.0 A and I 2 =3.0 A, both directed into the plane of paper .What is the…
- A current i is flowing in a straight conductor of length L. The magnetic induction at a point distant L/4 from its…
- Two long parallel wires are at a distance 2 d apart. They carry steady equal currents flowing out of the plane of the…