Define watt,kilowatt hour and electron volt
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Posted by Jap Purba 5 years, 9 months ago
- 1 answers
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Yogita Ingle 5 years, 9 months ago
kilowatt hour = 1000watt hour
= 100 × 60 × 60 watt sec
= 3.6 × 10⁶ J [∵ watt = j/s so, watt.sec = j]
hence, kilowatt hour = 3.6 × 10⁶ J
now, electron volt ,eV = 1.6 × 10⁻¹⁹ C.volt
= 1.6 × 10⁻¹⁹ J [ ∵ 1volt = 1J/C so, C.volt = J ]
hence, eV = 1.6 × 10⁻¹⁹ J
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