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MC
Question Practice

If a straight, long conductor carries a steady current I, what happens to the magnetic field when the current direction is reversed?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Physics
Physics Part - I
MOVING CHARGES AND MAGNETISM
Question Bank

If a straight, long conductor ...

Single Answer MCQ
Q-00085400

If a straight, long conductor carries a steady current I, what happens to the magnetic field when the current direction is reversed?

1

The magnetic field remains unchanged in strength

2

The magnetic field completely disappears

3

The magnetic field direction reverses

4

The magnetic field strength doubles

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