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Assertion (A): When current is passed through a wire, a magnetic field is generated around the wire. Reason (R): Whenever there is a change of magnetic flux linked up with the coil

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Question

Assertion (A): When current is passed through a wire, a magnetic field is generated around the wire.

Reason (R): Whenever there is a change of magnetic flux linked up with the coil, the induced current is generated in the coil.

Options

  • Both A and R are correct, and R is the correct explanation of A.

  • Both A and R are correct, but R is not the correct explanation of A.

  • A is correct but R is wrong.

  • Both A and R are wrong.

MCQ
Assertion and Reasoning
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Solution

Both A and R are correct, but R is not the correct explanation of A.

Explanation:

Assertion (A) is true because a current-carrying wire produces a magnetic field around it (Oersted’s experiment). Reason (R) is also true because a change in magnetic flux linked with a coil induces a current in the coil. But R describes electromagnetic induction; it does not explain why a current produces a magnetic field. Therefore, R is not the correct explanation of A.

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Chapter 9: 1. Electromagnetism 2. Magnetic Effects of Electric Current 3. Electromagnetic Induction - COMPETENCY-FOCUSED PRACTICE QUESTIONS RELEASED BY CISCE [Page 224]

APPEARS IN

Goyal Brothers Prakashan A New Approach to ICSE Physics [English] Class 10
Chapter 9 1. Electromagnetism 2. Magnetic Effects of Electric Current 3. Electromagnetic Induction
COMPETENCY-FOCUSED PRACTICE QUESTIONS RELEASED BY CISCE | Q 3. | Page 224
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