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State Lenz's rule to find direction of i...

State Lenz's rule to find direction of induced current.

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Lenz's law cannot be used to find the direction of induced current. (True/False)

Use Lenz's law to deterine the direction of induced current in the situation described by the figures. A wire of irregular shape turning into a circular shape. The cross(x) indicates magnetic field into the paper and the dot (.) indicates magnetic field out of the paper.

Use Lenz’s law to determine the direction of induced current in the situations described by Fig.: A circular loop being deformed into a narrow straight wire. :

Use Lenz’s law to determine the direction of induced current in the situations described by Fig. A wire of irregular shape turning into a circular shape. :

What is electromagnetic induction ? State its laws. Describe the methods for producing induced e.m.f. State the law by which the direction of induced current can be determined.

Choose the correct option:A rectangular coil of copper wires is rotated in magnetic field.The direction of induced current changes once in each:

state the rule to determine the direction of a current induced in a coil due to its rotation in a magnetic field.

PUNJAB BOARD PREVIOUS YEAR PAPERS-ELECTROMAGNETIC INDUCTION-EXERSICE
  1. Define pH.

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  2. Define S.I. unit of self inductance.

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  3. State Lenz's rule to find direction of induced current.

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  4. State Lenz’s law.Give one example to illustrate it.

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  5. What are eddy currents ? Give experiment to explain their origion.

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  6. State and explain Faraday’s law of electromagnetic induction.

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  7. Define co-efficient of self-induction and find an expression for it fo...

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  8. Prove that Lenz’s law obeysthe law of conservation of energy.

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  9. Define co-efficient of mutual induction and find an expression for it.

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  10. Write the laws of electromagnetic induction.

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  11. Derivea expression for inducede.m.f. whenacoilrotates in a uniform mag...

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  12. What are eddy currents ? How eddy currents canbeminimised intransforme...

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  13. Is Lenz's law in accordance with the law of conservation of energy?

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  14. What are Faraday’s laws of electromagnetic Induction ?

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  15. What is meant by mutual inductance?

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  16. State and explain Faraday’s Law of electro-magneticInduction.

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  17. Show that energy stored in an inductor L, when a current is f establis...

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  18. What is electromagnetic induction ? State its laws.

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  19. What is meant by mutual inductance?

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  20. What are eddy currents ? How are these produced ? How eddy currents ca...

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