Electrostatics — practice questions
66 curated practice questions from Electrostatics (Physics JEE Advanced, NTA Exams) — 61 hard, 5 medium. Every question includes the final answer free; step-by-step worked solutions with a free account.
- A particle of mass ‘m’ and charge ‘q’ is accelerated through a potential difference of V volt, its energy will be
- Consider an evacuated cylindrical chamber of height h having rigid conducting plates at the ends and an insulating…
- Two identical metal plates are given positive charges Q 1 and Q 2 ( 1 ) respectively. If they are now brought close…
- Two equal charges are separated by a distance d. A third charge placed on a perpendicular bisector at x distance will…
- A parallel plate capacitor with air in between the plates has capacitance of 9 µF .The separation between the plates is…
- An electron having charge e and mass m starts from lower plate of two metallic plates separated by a distance d, if the…
- An electric dipole is situated in an electric field of uniform intensity E whose dipole moment is p and moment of…
- A parallel plate air capacitor is connected to a battery. The quantities charge, voltage, electric field and energy…
- The magnitude of electric field E in the annular region of a charged cylindrical capacitor
- The capacitance of a parallel plate condenser is C 1 (fig. a). A dielectric of dielectric constant K is inserted as…
- An electron moves round a circular path of radius 0.1 m about an infinite linear charge of density +1 µC/m. The speed…
- In a parallel–plate capacitor, the region between the plates is filled by a dielectric also. The capacitor is connected…
- In the figure shown, if the linear charge density is λ, then the net electric field at O will be
- Five identical plates are connected across a battery as follows. If the charge on plate 1 be +q, then the charges on…
- A capacitor of capacitance C 1 = 1 µF can with stand maximum voltage V 1 = 6kV (kilo-volt) and another capacitor of…
- An infinite number of identical capacitors each of capacitance 1µF are connected as in adjoining figure. Then the…
- Seven capacitors each of capacitance 2 µF are connected in a configuration to obtain an effective capacitance 10/11 µF…
- A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential difference V…
- How should three charges q, 2and 8be arranged on a 9 cm long line such that the potential energy of the system is…
- A dielectric slab of thickness d is inserted in a parallel plate capacitor whose negative plate is at x = 0 and…
- A system of three parallel plates each of area A are separated by distance d 1 and d 2 . The space between them is…
- A solid conducting sphere having a charge is surrounded by an uncharged concentric conducting hollow spherical shell…
- A circuit is connected as shown in the figure with the switch S open. When the switch is closed, the total amount of…
- A parallel plate capacitor of plate area A and plate separation d is charged to potential difference V and then the…
- A particle of specific charge (q/m) enters into uniform electric field E along the centre line, with velocity v =2 q qE…
- Four plates, each of area A and each side are placed parallel to each other at a distance d. A battery is connected…
- A thin conducting ring of radius r has an electric charge + Q, if a point charge is placed at the centre of the ring…
- If an electron has an initial velocity in a direction different from that of an uniform electric field, the path of the…
- Two identical particles of same mass each m are having same magnitude of charge Q. One particle is initially at rest on…
- A proton and an α-particle are situated at r distance apart. At very large distance apart when released, the kinetic…
- A field line is shown in the figure. This field cannot represent.
- A ring of charge with radius of 50 cm has gap of 0.002 π m. If the ring carries a charge of 1 C. What is the electric…
- If we increase ‘d’ of a parallel plate condensor to ‘2d’ and fill wax to the whole empty space between its two plate…
- Three large plates A,B and C are placed parallel to each other and charges are given as shown below Then answer the…
- An alpha particle of energy 5 MeV is scattered through 180° by a fixed uranium nucleus. The distance of closest…
- Two identical thin rings, each of radius R metres, are coaxially placed a distance R metres apart. If Q 1 coul, and Q 2…
- An electric dipole is placed at origin and is directed along the x-axis. At a point P far away from the dipole the…
- A length-scale ( l ) depends on the permittivity (ε) of a dielectric material, Boltzmann constant ( k B ), the absolute…
- A parallel plate capacitor is connected to a battery. The plates are pulled apart with a uniform speed. If x is the…
- A parallel plate capacitor of capacity C_ 0 is charged to a potential V_ 0 (i) The energy stored in the capacitor when…
- A parallel plate capacitor is filled by a dielectric whose permittivity varies with the applied voltage according to…
- An uncharged capacitor with a solid dielectric is connected to a similar air capacitor charged to a potential of V 0 …
- In the circuit shown, initially there is no charge on capacitors and keys S 1 and S 2 are open. The values of the…
- In the circuit shown in steady state
- n small drops of same size are charged to V volt each. If they coalesce to form a single large drop, then its potential…
- A dielectric slab is inserted between the plates of an isolated charged capacitor. Which of the following quantities…
- Condenser A has a capacity of 15µF when it is filled with a medium of dielectric constant 15 . Another condenser B has…
- Two identical point charges are placed at a separation of d. P is a point on the line joining the charges, at a…
- Find the equivalent capacitance between X and Y Each 4 ~F
- Two point charges +and –are held fixed at (–d, 0) and (d, 0) respectively of a x-y co-ordinate system. Then
- A hollow sphere of radius 2R is charged to V volt and another small sphere of radius R is charged to V/2 volt. Then the…
- The expression for the capacity of the capacitor formed by compound dielectric placed between the plates of a parallel…
- The electric dipole is situated in an electric field as shown in adjacent figure. The dipole and the electric field are…
- The space between two plates of a condenser is filled with two dielectric media of thickness t 1 and t 2 and dielectric…
- A finite ladder is constructed by connecting several sections of 2µF, 4µF capacitor combinations as shown in the…
- A capacitor is connected across another charged capacitor. The energy in the two capacitors will:
- Find the equivalent capacitance between X and Y (Q.9 to Q.10) Each 4 ~F
- The space between the plates of a parallel plate capacitor is filled completely with a dielectric substance having…
- Five capacitors are connected as shown in the diagram. If the p.d. between A and B is 22 V, the emf of the cell is
- Figure shows two concentric, conducting shells of radii r and 2r. The outer shell is given a charge Q. The amount of…
- Two equal negative charges –are fixed at points (0, –a) and (0, a) on y-axis. A positive charge is released from rest…
- A metallic solid sphere is placed in a uniform electric fied. The lines of force follow the path (s) shown in figure as
- In a parallel–plate capacitor, the plates are kept vertical. The upper half of the space between the plates is filled…
- A charge +is fixed at each of the points x = x 0 , x = 3x 0 , x = 5x 0 , ..... ad inf. on the x axis, and a charge –is…
- The charge and -2are placed at some distance .The locus of points in the plane of the charges where the potential is…
- A wire is bent in the form of a regular hexagon of side a and a total charge is distributed uniformly over it. One side…