a potential difference of 220 volt is applied across a resistance of 440 OHM in the electrical appliance. calculate the current drawn at the heat energy produced in 20 seconds
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current:
I=V/R
=220/440
=0.2A
energy:
E=I2Rt
=0.2*0.2*440*20
=352J
hope it helps
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SanjayDG:
The question is find the the current not heat.
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