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A torch bulb is rated 2.5V and 750mA. Calculate: a) it's power b) it's resistance c) then energy consumed if this bulb is lighted for 4 hours

Answer» A torch bulb is rated 2.5V and 750mA. Calculate:
a) it's power
b) it's resistance
c) then energy consumed if this bulb is lighted for 4 hours


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