An electric bulb o f 500 watt at 100 volt is used in a circuit having a 200 V supply…
Physics · Class 12 · CBSE — Current Electricity
An electric bulb o f 500 watt at 100 volt is used in a circuit having a 200 V supply. Calculate the resistance R to be connected in series with the bulb so that the power delivered by the bulb is 500 W.
- 20 \(\Omega\)
- 10 \(\Omega\)
- 50 \(\Omega\)
- 100 \(\Omega\)
Answer
(A) 20
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