हिंदी

Calculate the electrical energy consumed when a bulb of 40 W is used for 12.5 hours everyday for 30 days.

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प्रश्न

Calculate the electrical energy consumed when a bulb of 40 W is used for 12.5 hours everyday for 30 days.

संख्यात्मक
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उत्तर

Given: \(P=40\ \mathrm{W}=0.04\ \mathrm{kW}\)

daily use \(=12.5\ \mathrm{h}\), for 30 days.

Formula: \[E=Pt\]

\[=0.04\times12.5\times30\]

\[=15\ \mathrm{kWh}\]

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अध्याय 4: Electricity and Magnetism - Frequently Asked Questions in Board Examination [पृष्ठ २८६]

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फ्रैंक Physics Part 2 [English] Class 10 ICSE
अध्याय 4 Electricity and Magnetism
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