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Name a device that help to maintain a po...

Name a device that help to maintain a potential difference across a conductor?

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MODERN PUBLICATION-ELECTRICITY-EXERCISE
  1. Name a device that help to maintain a potential difference across a co...

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  2. Define electric current and give its unit

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  3. Define one volt?

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  4. Define electric current and give its unit

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  5. Define one ampere?

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  6. What is a electric circuit?

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  7. What is the difference between a voltmeter and an ammeter?

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  8. 2 ampere of current is flowing through a wire.What is the amount of ch...

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  9. Find thr electric potential of a point if 2J of work is done in bringi...

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  10. Find the potential difference between two points if 5J of works is don...

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  11. How many electrons should be removed from a condutor so that it acquir...

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  12. An electric bulb draws a current of 0.5A for 10 minutes .Calculate the...

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  13. Draw the following electrical symbols: Battery

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  14. Draw the following electrical symbols: plug key(closed)

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  15. Draw the following electrical symbols: variable resistance

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  16. Draw the following electrical symbols: Electric bulb?

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  17. Write ohm's law. Draw a circuit diagram to prove it experimentally in ...

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  18. On what factors does resistance depends?Explain.

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  19. For three resistors connected in parallel,prove that the equivalent re...

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  20. Find the equivalent resistance of three resistors of 2Ohm,3Ohm,4Ohmwhe...

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  21. Find the equivalent resistance of three resistors of 2Ohm,3Ohm,4Ohmwhe...

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