A solenoid long has turns and carries a current of

PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A solenoid

25\,\text{cm}

long has

500

turns and carries a current of

3\,\text{A}

. The current is increased to

5\,\text{A}

while the length and number of turns remain unchanged. By what factor does the magnetic field inside the solenoid change? Show your working.