Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Induction

Question:

The armature coil of a generator has 20 turns and its area is $0.127\, m^2$. How fast approximately should it be rotated in a magnetic field of $0.2\, Wbm^{-2}$, so that the peak value of induced emf is 160 V?

Options:

20 rps

50 rps

100 rps

200 rps

Correct Answer:

50 rps

Explanation:

The correct answer is Option (2) → 50 rps