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A circuit has fuse of 5A. …

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A circuit has fuse of 5A. What us the maximum number of 100W bulbs that can be safely used in circuit?

Posted by Krishna Sinha 8 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Shweta Gulati 8 years, 4 months ago

Suppose x number of such bulbs can be used

Power of one bulb = 100 watt

Power of x bulbs (p) = 100 X x watts

Potential difference (V) = 220 volts

I = 5 ampere

We know that P = VI

100 X x = 220 x 5

x = 220 x 5 /100 = 11 bulbs.

3Thank You

ANSWER

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CBSE > Class 10 > Science