Question

An electric iron of resistance 660 Ohms is connected to a main supply of 220 V.
Compute the current through the element and the amount of heat produced in
Joules in 11 minutes.​

Answer 1

Answer:

Resistance = 660 ohm

Voltage=220 V

We know,

V = IR (I = current)

220=I*660

I =220/660

=1/3 A

Heat produced = I^2Rt

=1/3*1/3*660*11*60(time in sec)

=48400 J

Current=1/3A

Heat =48400 J

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