A solenoid of length 0.5 m and radius 10 cm has 500 turns. If a current of 5 A flows through it, the magnetic field produced inside the solenoid will be:
Answer & explanation
Correct answer: option 2
$B = \mu_0 ni = 4\pi \times 10^{-7}\times 1000\times 5 = 2.8\times 10^{-3}T$