Q4. The field winding of a dynamo may be taken to have a constant inductance of 120 H and an effective resistance of 30
Posted: Sun Jul 10, 2022 11:34 am
Q4. The field winding of a dynamo may be taken to have a constant inductance of 120 H and an effective resistance of 30 2. When it is carrying a current of 5 A, the supply is interrupted and a resistance of 50 Q is connected across the winding. How long will it take for the current to fall to 1-0?