Science, asked by gurleenkaur85, 1 year ago

what is the resistance of the filament of 200 voltage,,,100 Watt lamp?

Answers

Answered by Anonymous

Explanation:

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Given that the power of bulb is 100W and operated at 200V potential difference.

We are all familiar with the formula i.e P=VI according to the given problem P=100W & V=200V. substituting in the above formula we get i=0.5 amp.

We also known that P=i^2R. substituting the required values in equation above, we get R as R=100/(0.5)×(0.5) i.e.R=10000/25 =400 ohm

Hence the resistance offered by the bulb is 400ohm

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Answered by stormreaper40

Answer:

ANS: 400 ohm

Explanation:

P=V/I

100=200/I

I=O.5 Ampere

R=V/I

R= 200/ 0.5

ohm

R= 400

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