A street lamp is rated at 240V and 120W. How do I calculate the current through the lamp when it is working at its recommended power?
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
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পিজিটি(মেডিসিন)
The answer is 0.5 amps. Using the P=IxE formula, I=P/E so plugging the numbers in gives 120W/240V=0.5 Amps
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