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In a metal wire, electron moves from neg...

In a metal wire, electron moves from negative end to positive end and, therefore, the direction of electric current is from negative to positive.

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MODERN PUBLICATION-ELECTRICITY-EXERCISE
  1. When temperature of metal increases, does the resistance increases or ...

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  2. Which physical quantity has its unit kWh?

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  3. In a metal wire, electron moves from negative end to positive end and,...

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  4. For a continuous flow of current through a wire, the potential differe...

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  5. Electrochemical cell is a device which maintains a constant potential ...

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  6. symbol stands for variable resistor.

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  7. The current flows in a metal wire due to movement of electrons, wherea...

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  8. The resistance of copper is more than nichrome.

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  9. The best conductor of electricity is:

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  10. Constaitan is used as a standard resistor. Is the statement true or fa...

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  11. Electrical conductance of metals decreases with increase in temperatur...

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  12. The resistivity of a substance depends on its length and area of cross...

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  13. Ohm's law is a universal law. Is this statement true.

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  14. The following graph is for ohmic conductor. .Is this statement true.

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  15. Argon or nitrogen is filled up in place of air in bulb to increase the...

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  16. Show 1 watt=(1 ampere)xx(1 volt)

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  17. What is meant by the BOTU (or Board of Trade unit) of electric energy?

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  18. From rated value of power and potential difference the resistance of t...

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  19. Fill ups Electric potential at a point is the …………….in moving a ………….....

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  20. Fill ups …………xxV=W

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