9.
Find the energy consumed in 10 hours by 5
devices of power 250 W each.
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9.
Find the energy consumed in 10 hours by 5
devices of power 250 W each.
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Answer:
power consumed by one device=250 watt
power consumed by four devices=250×5
= 1250 watt
time taken=10 hours
energy=power × time
energy consumed=1250 × 10
=12500 J
one power :when one joule energy is consumed per hour thin this is called one power or one watt.