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Name the instrument which is used to mea...

Name the instrument which is used to measure potential difference.

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Potentiometer
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FULL MARKS-CURRENT ELECTRICITY-Additional Questions Solved (Fill in the blanks)
  1. With increase of temperature, resistance of conductors ……………………….. .

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  2. In insulators and semiconductors, as temperature increases, resistance...

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  3. A material with a negative temperature coefficient is called a …………………...

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  4. the temperature co-efficient of resistance for alloys is

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  5. The electric current in an external circuit flows from the ………………….. .

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  6. In the electrolytic cell, current flows from …………………. .

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  7. A freshly prepared cell has ………………… internal resistance.

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  8. State the sign convention for applying Kirchhoff's first rule.

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  9. The current law states that the algebraic sum of the currents meeting ...

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  10. Current law is a consequence of conservation of …………………….. .

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  11. Sate Kirchhoff's voltage rule.

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  12. Kirchhoff's second law is a consequence of conservation of …………….. .

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  13. Wheatstone bridge is used for ………………… .

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  14. ………………… is a form of Wheatstone's bridge.

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  15. The temperature coefficient of manganin wire is ……………….. .

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  16. Name the instrument which is used to measure potential difference.

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  17. The SI unit of electrical energy is .

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  18. An instrument to measure electrical power consumed is …………….. .

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  19. ………………… first introduced the electrochemical battery

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  20. Charging is a process of reproducing ………………….. .

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