A torch bulb is rated 5.0 V and 500ma.calculate its power,resistance and energy consumed
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power = voltage × current
5 × 500÷1000 =2.5 watt
resistance= voltage÷current
5÷0.5 =10 ohm
energy. = power × time
time is not given so t=1sec
energy =power= 2.5 joule
5 × 500÷1000 =2.5 watt
resistance= voltage÷current
5÷0.5 =10 ohm
energy. = power × time
time is not given so t=1sec
energy =power= 2.5 joule
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