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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? 

  • 1 answers

Shweta Gulati 7 years, 1 month 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.

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