A long insulated copper wire is closely wound as a spiral of N turns. The spiral has…
Physics · JEE Advanced · NTA Exams — Magnetic Effects of Current and Magnetism
A long insulated copper wire is closely wound as a spiral of N turns. The spiral has inner radius a and outer radius b. The spiral lies in the X-Y plane and a steady current I flows through the wire. The Z-component of the magnetic field at the centre of the spiral is
Answer
(A)
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A compass needle which is allowed to move in a horizontal plane is taken to an earth magnetic pole. Which of…
- A non-planar loop of conducting wire carrying a current I is placed as shown in the figure. Each of the…
- An infinitely long wire, located on the z -axis, carries a current I along the + z -direction and produces…
- A current carrying rectangular coil is placed in a uniform magnetic field. In which orientation, the coil…
- Two long parallel wires are at a distance 2 d apart. They carry steady equal currents flowing out of the…
- A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel…
- A proton moving with a constant velocity passes through a region of space without any change in its velocity…
- From a cylinder of radius R, a cylinder of radius R/2 is removed, as shown. Current flowing in the remaining…
More Magnetic Effects of Current and Magnetism questions · Browse all practice questions