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When a fuse is rated 8 A, it means...

When a fuse is rated 8 A, it means

A

it will not work if current is less than 8 A

B

it has a resistance of 8 W

C

it will work only if current is 8 A

D

it will melt if current exceeds 8 A

Text Solution

Verified by Experts

The correct Answer is:
D
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ZEN PUBLICATION-ELECTRICITY-ZEN ADDITIONAL QUESTIONS SECTION (MULTIPLE CHOICE QUESTIONS)
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  2. When a current 'l' flows through a resistance 'R' for time 't' the ele...

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  3. When a fuse is rated 8 A, it means

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  4. The work done in moving a unit positive charge across two points in an...

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  5. The potential at a point is 20 V. The work done to bring a charge of 0...

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  6. The free electrons of a metal

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  7. The path of a free electron in a metal is

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  8. When there is an electric current passing through a wire, the particle...

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  9. A positive charge released from rest

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  10. Three equal resistances when combined in series are equivalent to 90Ω....

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  11. For which of the following substances, resistance decreases with incre...

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  12. Two electric bulbs have resistances in the ratio 1 : 2. If they are jo...

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  13. Among the following statements. 1. A discharge lamp uses a discharge...

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  14. Among identical spheres A and B having charges as – 5 and - 16 C

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  15. Keeping the potential difference constant, the resistance of a circuit...

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  16. The resistance of a conductor is 27Omega. If it is cut into three equa...

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  17. A piece of metallic wire of resistance R is cut into 3 equal parts. Th...

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  18. An electric kettle for use on a 230 V supply is rated at 3000 W. For s...

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  19. At a given time, a house is supplied with 100 A at 220 V. How many 75 ...

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  20. If the potential difference between the ends of a fixed resistor is ha...

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