Question

A solenoid of length 50 cm, having 100 turns carries a current of 2.5 A. The magnetic field at one end of the solenoid is

• A. 3.14 × 10-4 T
• B. 6.28 × 10-4 T
• C. 1.57 × 10-4 T
• D. 9.42 × 10-4 T

Answer 1

Answer: (A)

3.14 × 10-4 T

Answer 2

and