Target Exam

CUET

Subject

Physics

Chapter

Communication

Question:

The magnetic flux linked with a coil of N turns each having area of cross-section A, held in a magnetic field B with its plane parallel to the field, will be:

Options:

Zero

NBA

BA

-NBA

Correct Answer:

Zero

Explanation:

The correct answer is Option (1) → Zero

The magnetic flux $(\phi_B)$ is -

$\phi_B=N.B.A\cos θ$

As, Magnetic field B is parallel to the plane of area,

$∵θ=0°$

$∴\phi_B=NBA\cos 0°$

$=NBA$