EMF JEE Main 2025 | Assertion Reason Magnetic Field Question

JEE MAIN 2025

24-01-2025 SHIFT-2

Question

Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A electron in a certain region of uniform magnetic field is moving with constant velocity in a straight line path.
Reason (R): The magnetic field in that region is along the direction of velocity of the electron.
In the light of the above statements, choose the correct answer from the options given below:

Select the correct option:

(A) is true but (R) is false

Both (A) and (R) are true but (R) is NOT the correct explanation of (A)

Both (A) and (R) are true and (R) is the correct explanation of (A)

(A) is false but (R) is true

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution