Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
JEE Main & Advanced
Physics
Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
Question Bank
Heating Effect of Current
question_answer
A cable of resistance \[10\,\Omega \] carries electric power from a generator producing 250 kW at 10000 volt. The current in the cable is
A) 25 A
B) 250 A
C) 100 A
D) 1000 A
Correct Answer:
A
Solution :
Since \[P=VI\,\]Þ \[I=\frac{P}{V}=\frac{250000}{10000}=25\,\,A\]