MHT CET 2026 Physics question
The magnetic field at the center of circular coil carrying 'I' for a single turn of a given length of wire is 'B' The same wire is bent in a circular coil having two turns. When the same current passes through it, the value of magnetic field becomes
Answer: (A)
Solution
Let the wire length be . For one turn , so and . For two turns , so . The field at the centre of an -turn coil is $B' =
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