nursing AIIMS BSc Nursing 2025 Mock Test Series Physics Moving Charges and Magnetism Solenoids and Toroids
A solenoid of length 1.5 m and 4 cm diameter possesses 10 turns per cm. A current of 5A is flowing through it, the magnetic induction at axis inside the solenoid is
(μ0 = 4π × 10-7 weber amp-1 m-1)
1
4π × 10-7 gauss
2
2π × 10-7 gauss
3
4π × 10-5 tesla
4
2π × 10-5 tesla