Question

a circular coil of radius 0.1m has80 turns of wire. If the magnetic field through the coil increase from 0 to2 Tesla in 0.4s and the coil is connected to a 11 ohm resistor,what is the current flow through the resistor during the 0.4s??​

Answer 1

Explanation:

NAdB

R.dt

= 80 × πr² × ( 2 - 0 )

11 × 0.4

= 8 A Ans

7