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How many bulbs of resistance of …

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How many bulbs of resistance of 4 ohm should be arranged in series to have current of 5A with voltage 220V?

Posted by Malaika Sharma 5 years, 7 months ago

CBSE > Class 10 > Science

3 answers

Hamdankhan Hamdankhan9211 5 years, 7 months ago

Sorry i have written I=4 by mistake

Hamdankhan Hamdankhan9211 5 years, 7 months ago

V=IR So. R=v:I R=220:4= 44 R:r= 44:4 =11

Hamdankhan Hamdankhan9211 5 years, 7 months ago

11 bulbs

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