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Does Len'z law violet the principle of e...

Does Len'z law violet the principle of energy conservation ?

Text Solution

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No, Lenz's law does not violate this principle.
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Lenz's law gives us the direction of current induced in a circuit. According to this law, the polarity of induced e.m.f is always such that is opposes the change in magnetic flux responsible for its production. It means if e.m.f. is induced due to increase in magnetic flux, the direction of e.m.f. induced is such as to oppose the increase in magnetic flux. The reverse is also true. Read the above passage and answer the following questions : (i) Does Lenz's law violate the principle of conservation of energy ? (ii) Name any other rule for finding the direction of induced current. (iii) What does Lenz's law imply in day to day life?

State and explain Lenz's law. Give one exmple to illustrate the law. How will you verify it experimentally ? Does it obey the principle of energy consevartion ?

Knowledge Check

  • Assertion (A): Lenz's law does not violets the principle of conservation of energy. Reason (R): Induce e.m.f. never opposes the change in magnetic flux that causes the e.m.f.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is NOT the correct explanation of A
    C
    A is true but R is false
    D
    A is false and R is true

  • Lenz's law violates the principle of conservation of energy. Reason: Induced e.m.f. opposes always the change in magnetic flux responsible for its production.

    A
    If both asseration and reason are true and reason is the correct explanation of assertion.
    B
    If both asseration and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

  • Rocket work on the principle of conservation of

    A
    Momentum
    B
    Energy
    C
    Mass
    D
    Velocity

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    Principle Of Atom Conservation

    STATEMENT-1: Lenz's law is based on the principle of conservation of energy. Because STATEMENT-2: The magnitude of the induced emf is directly proportional to the rate of change of the magnetic flux.

    Rocket works on the principle of conservation of

    Rocket works on the principle of conservation of

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