Physics-Biot-Savart Law

NEET Physics Biot-Savart Law MCQ Question

Type: MCQ-diagram based-Easy-Class 12

In a diagram illustrating the Biot-Savart law, a current element I d l produces a magnetic field dB at a distance r. If the plane contains vectors d l and r, and you imagine moving from d l towards r in a clockwise direction, what is the direction of the resultant field?

Question diagram
A

Into the page

B

Out of the page

C

Along the plane

D

Opposite to the direction of r

Correct Answer

Option A

Detailed Explanation

According to the right-hand screw rule, if the movement from d l to r is clockwise, the resultant field direction is away from you, which is into the page.

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