Test SeriesFree PYQsExamsPricing

MHT CET Physics question

PhysicsMoving Charges and MagnetismMHT CET

Two circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of the 2nd coil. What is the ratio of potential difference applied across them, so that the magnetic field at their centres is the same?

Answer: (B)

Solution

For single-turn coils , equal needs ; resistance length gives

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-078821