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Assertion :- Whenever magnetic flux link...

Assertion :- Whenever magnetic flux linked with the coil changes with respect to time, then an emf is induced in ti .
Reason :- According to law , the direction of induced current in any coil in such a way that it always oposses the cause by which it is produced.

A

If the Assertion & Reason are True & the Reason is a correct explanation of the Assertion .

B

If both Assertion & Reason are True & the Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is Fasle.

D

If both Assertion and Reason are False .

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given question, we need to evaluate the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion:** - The assertion states: "Whenever magnetic flux linked with the coil changes with respect to time, then an emf is induced in it." - According to Faraday's Law of Electromagnetic Induction, this statement is indeed true. Faraday's Law states that the induced electromotive force (emf) in any closed circuit is equal to the negative rate of change of the magnetic flux through the circuit. 2. **Understanding the Reason:** - The reason states: "According to Lenz's law, the direction of induced current in any coil is such that it always opposes the cause by which it is produced." - This statement is also true. Lenz's Law explains the direction of the induced current, stating that it will always act to oppose the change in magnetic flux that produced it. 3. **Evaluating the Relationship Between Assertion and Reason:** - While both the assertion and the reason are true statements, the reason does not serve as an explanation for the assertion. The assertion is based on Faraday's Law, while the reason is based on Lenz's Law. They are related but do not explain each other directly. 4. **Conclusion:** - Both the assertion and the reason are true, but the reason is not a correct explanation of the assertion. Therefore, the correct answer is that both statements are true, but the reason does not explain the assertion. ### Final Answer: Both the assertion and the reason are true, but the reason is not a correct explanation of the assertion. ---
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Knowledge Check

  • The magnetic flux linked with the coil changes from 0.1 Wb to 0.04 Wb in 3 s. the emf induced in the coil is

    A
    2 V
    B
    0.2 V
    C
    0.02 V
    D
    0.002 V

  • Whenever the magnet flux linked with a coil changes, then is an induced emf in the circuit. This emf lasts

    A
    For a short time
    B
    For a long time
    C
    For ever
    D
    So long as the change in the flux takes place

  • Assertion :- If magnetic flux through any circuit is changes then an emf in induced in it . This emf is equal to negative of rate of changes of flux . Reason :- Direction of induced emf is always such that it always opposes the cause by which it is produced.

    A
    If the Assertion & Reason are True & the Reason is a correct explanation of the Assertion .
    B
    If both Assertion & Reason are True & the Reason is not a correct explanation of the Assertion.
    C
    If Assertion is True but the Reason is Fasle.
    D
    If both Assertion and Reason are False .

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