A) 8000 Wh
B) 2000 Wh
C) 1000 Wh
D) 800Wh
Correct Answer: C
Solution :
Here: Resistance\[R=80\,\Omega \] Voltage \[V=200\,V\] Time \[t=2\,hr\] The relation of power is given by \[P=\frac{{{V}^{2}}}{R}=\frac{{{(200)}^{2}}}{80}=500\,W\] Hence, energy spent is given by \[=power\times time\] \[=500\times 2=1000\,Wh\]You need to login to perform this action.
You will be redirected in
3 sec