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Power Loss in Transmission

A 20 watt and...

Question

A 20 watt and a 100 watt bulb are joined in series to the main supply.which bulb will glow more brightly?

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Solution

Dear Student

P = I²R

Resistance offered by 100 Watt bulb will be more and less amount of current will pass through it.

Heat produced by 20 Watt bulb will be more and it will glow brighter as compared to 100 Watt bulb.

Regards

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