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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. State and explain Faraday's law of induction.

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  2. Mention the condition under which a current can flow in a conductor .

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

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

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  5. Explain the construction and working of the following. Draw a neat dia...

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  6. ELECTRIC MOTOR

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  7. Define the term induced electric current

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

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

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  10. For transporting elecrtic power, what is required at the generating st...

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

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  12. Statement 1: Electric current (flow of electrons) creates heat in a re...

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  13. Derive an expression for heat produced in a conductor using Joule's la...

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  14. Name the types of wires or cables used the electric power supply provi...

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  15. How does the short circuit form? What is its effect?

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  16. Write short note on the device shown in the figure.

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  17. What precaution should be taken to avoid the overloading of domestic e...

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  18. What will happen if a magnet is placed in the vicinity of the conducto...

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

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  20. State the right hand thumb rule.

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