Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

Options:

a

b

c

d

Correct Answer:

d

Explanation:

Magnetic Moment $M = NIA = NI \pi r^2 = 20 \times 2 \times \pi \times 0.5^2 = 31.4 A-m^2$