Ts Eamcet
Moving Charges And Magnetism
TS EAMCET 2020 (Online) 14th September Evening Shift
MCQ+1 / -02020
A solenoid of length 2 m carries a current of 20 A . The diameter of the solenoid is 3 cm . If the magnetic field inside the solenoid is 20 mT , then the length of wire forming the solenoid is (assume, $\mu_0=4 \pi \times 10^{-7} \mathrm{H} / \mathrm{m}$ )