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Ohm's law is not obeyed by:...

Ohm's law is not obeyed by:

A

electrolytes

B

discharge tubes

C

vaccum tubes

D

all of these

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
  1. In a hydrogen atube it is observed that through a given cross-section ...

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  2. When current flows in a conductor, then the ratio of the intensity of ...

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  3. Ohm's law is not obeyed by:

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  4. Fill ups The S.I unit of resistance is……………and is denoted by…………… .

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  5. What is unit of resistance? Define it.

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  6. A solenoid is at potential difference of 60 V. current flowing through...

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  7. The resistance of a discharge tube is

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  8. A nichrome wire 1 m long and 1mm^2 in cross-section area drawn 4A at 2...

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  9. Reciprocal of resistance is called conductance.(True/False)

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  10. Which of the following physical quantities possesses the dimensions of...

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  11. The filament of electric bulb is made of .............. .

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  12. The length of a wire is doubled. Its conductance will

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  13. The length of a wire is doubled by pulling it.Find the new resistance.

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  14. Which of the following has negative temperature coefficient of resista...

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  15. Which of the following has a negative temperature coefficient?

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  16. A wire has a resistance of 3.1 Omega at 30^@C and a resistance of 4....

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  17. A wire has a resistance of 3.1Omega at 30^@C and a resistance of 4.5Om...

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  18. Three bulbs of electric powers 40 W, 60 W and 100 W are connected in s...

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  19. A 30 V . 90 W lamp is to be operated on a 120 V d.e. line for proper g...

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  20. If a power of 100 W is being supplied across a potential difference of...

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