A) 8000 Wh
B) 2000 Wh
C) 1000 Wh
D) 300 Wh
Correct Answer: C
Solution :
Resistance. \[R=80\,\Omega \] Voltage, \[V=200\,\,V\] \[t=2h\] The relation for power is given by \[D=P=\frac{{{V}^{2}}}{R}\] \[=\frac{{{(200)}^{2}}}{80}=500\,\,W\] The energy spent \[=power\times time\] \[=500\times 2=1000\,\,Wh\]You need to login to perform this action.
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