Current Electricity Charging Discharging Of Capacitors Question 555
Question: A hot electric iron has a resistance of $ 80,\Omega $ and is used on a 200 V source. The electrical energy spent, if it is used for two hours, will be
[Pb. PET 2002]
Options:
A) 8000 Wh
B) 2000 Wh
C) 1000 Wh
D) 800 Wh
Show Answer
Answer:
Correct Answer: C
Solution:
Energy $ \frac{V^{2}}{R}t=\frac{200\times 200\times 2}{80}=1000,Wh $
BETA
