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State the principles of electric motor a...

State the principles of electric motor and electric generator.

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(i.) Principle of electric motor:
Electric motor works on the principle that a current carrying conductor placed in a magnetic field experiences a force.
(ii.) Principle of electric generator:
Electric generator works on the principle of electromagnetic induction. When the coil of electric generator rotates in a magnetic field, magnetic field induces a current in this coil. This induced current then flows into circuit connected to the coil.
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TARGET PUBLICATION-EFFECTS OF ELECTRIC CURRENT -Answer the following
  1. What will happen if a magnet is placed in the vicinity of the conducto...

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  2. How does magnetic field due to current carrying conductor vary?

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  3. State the right hand thumb rule.

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  4. What will happen to the magnetic lines of force of the field produced ...

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  5. What is a solenoid ? Compare the magnetic fleld produced by a solenoid...

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  6. 12. Intext Question. (Textbook page no. 54) The magnetic lines of forc...

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  7. Classify the following into the heating effect of electric current and...

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  8. If an electric conductor is moving in a magnetic field or the magnetic...

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  9. Write a short note on galvanometer.

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  10. State Faraday's law of induction.

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  11. When will the induced current in the electrical conductor (coil) be ma...

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  12. State the principles of electric motor and electric generator.

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  13. Explain the construction and working of an electric motor. Draw a neat...

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  14. Explain with a labelled diagram, the principle, construction and worki...

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  15. (a) What is an electric motor ? With the help of a labelled diagram, d...

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  16. Compare the variations in alternating current and direct current using...

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  17. What is the difference between the frequency of AC and DC?

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  18. Which device is used to produce electricity ? Describe with a neat di...

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  19. What will be required to make a DC generator?

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  20. Draw the diagram of a DC generator. Then explain as to how the DC curr...

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