A resistance of 40 Ω and one of 60 Ω are arranged in series across 220V supply7. Find the heat in joules produced by this combination of resistances in half a minute?
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H=VIT
v=220v
I=7A
T=30sec
H=220×7×30
H=46200joule
v=220v
I=7A
T=30sec
H=220×7×30
H=46200joule
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this may be answer......
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is that answer?
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