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A: The induced current flows so as to op...

A: The induced current flows so as to oppose the cause producing it.
R: Lenz's law is based on energy conservation.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion.

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.

C

If Assertion is true statement but Reason is false.

D

If both Assertion and Reason are false statements.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given statements regarding induced current and Lenz's law, we can break down the solution step by step. ### Step 1: Understanding the Assertion The assertion states that "The induced current flows so as to oppose the cause producing it." This is a fundamental principle of electromagnetic induction. When there is a change in magnetic flux through a circuit, an induced current is generated in such a direction that it opposes the change in flux. **Hint:** Think about how a change in magnetic field can affect the current in a loop. ### Step 2: Understanding the Reason The reason states that "Lenz's law is based on energy conservation." Lenz's law indeed states that the direction of the induced current will be such that it opposes the change in magnetic flux, which aligns with the principle of conservation of energy. If the induced current did not oppose the change, it would lead to an increase in energy without a corresponding input, violating the conservation principle. **Hint:** Consider how energy conservation applies when magnetic fields change and how this relates to the direction of the induced current. ### Step 3: Relating Assertion to Reason Both the assertion and the reason are correct. The assertion correctly describes the behavior of induced currents, while the reason provides a valid explanation based on Lenz's law and energy conservation. The negative sign in Faraday's law indicates that the induced EMF (and thus the induced current) acts in opposition to the change in magnetic flux. **Hint:** Reflect on how the concepts of induced EMF and opposition to changes in magnetic flux are interconnected. ### Step 4: Conclusion Since both the assertion and the reason are true, and the reason correctly explains the assertion, we conclude that both statements are correct and that the reason is a valid explanation for the assertion. **Hint:** Summarize your findings to confirm that both statements are true and related. ### Final Answer: Both the assertion (A) and the reason (R) are correct, and R is the correct explanation for A.
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Knowledge Check

  • Bernoulli's principle is based on the law of conservation of

    A
    mass
    B
    momentum
    C
    energy
    D
    none of the above

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