An electric device of 3 v draws a current of 0.4 a if the device is switched on for 5 min calculate tje energy consumed
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u can use
power=energy÷time
energy=power÷time
and power=i^2r
as u don't have r so
r=V÷I
and after putting and calculation u will get your answer
power=energy÷time
energy=power÷time
and power=i^2r
as u don't have r so
r=V÷I
and after putting and calculation u will get your answer
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