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The resistivtiy does not change if...

The resistivtiy does not change if

A

the material is changed

B

the temperature is changed

C

the shape of the resistor is changed

D

both material and temperature are changed

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MODERN PUBLICATION-ELECTRICITY-EXERCISE
  1. What is the maximum resistance which can be made using five resistors ...

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  2. A cylindrical conductor of length l and uniform are of cross section A...

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  3. The resistivtiy does not change if

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  4. In an electrical circuit two resistors of 2 ohm and 4 ohm espectively ...

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  5. A number of cells when connected in series from

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  6. In a voltmeter there are 20 divisin between the 0 mark and 0.5 V mark....

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  7. Which of the following statements does not represent ohm's law?

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  8. True or false The resistance of ammeteer is very high.

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  9. True or false In a circuit resistance is doubled the current to half.

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  10. True or false Germanium is a substance whose resistance decreases with...

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  11. True or false A bird perched on a high voltage wire is killed by the c...

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  12. True or false Volt is represented by joule/coulomb.

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  13. Fill ups Among silver and copper……………is a better conductor.

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  14. Resistance of a conductor depends on:

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  15. Fill ups The current through a lamp of 25 W operating at 200 V is……………...

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  16. Fill ups Lead tin alloy is used for making fuse because it has…………..me...

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  17. Fill ups Nicrhome is used for making element because it has……………meltin...

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  18. What is the current flowing in the given electric circuit?

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  19. A wire of resistivity rho is stretched to double its length. Then its ...

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  20. How many electrons make 10C of charge?

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