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A solenoid is at potential difference of...

A solenoid is at potential difference of 60 V. current flowing through it is 15 A, then resistance solenoid will be

A

4 ohm

B

8 ohm

C

0.25 ohm

D

2 ohm

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
  1. Fill ups The S.I unit of resistance is……………and is denoted by…………… .

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  2. What is unit of resistance? Define it.

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

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  4. The resistance of a discharge tube is

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. A 10Omega electric heater operates on a 110 V line. The rate at which ...

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  19. On 220 V supply, a heater heats a volume of water in 5 minutes time. O...

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  20. Two heater coils separately take 10 minutes and 5 minutes to boil a ce...

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