A long solenoid of has area of cross-section . Calculate the voltage induced across its ends if the current in the solenoid is changed from to in .
The voltage induced across its ends if the current in the solenoid is changed from 1A to 2A in 0.1 s:
Induced Voltage is given as :
therefore,
given 10 turns /cm, there for 0.5m=50 cm the number of turns N = 500