Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

Options:

a

b

c

d

Correct Answer:

d

Explanation:

$ B = \mu_0 nI $

$ I = \frac{B}{\mu_0 n} = \frac{ 20\times 10^{-3}}{4\pi \times 10^{-7} \times 2000} = 8 A$