Current Electricity Charging Discharging Of Capacitors Question 573
Question: A railway compartment is lit up by thirteen lamps each taking 2.1 amp at 15 volts. The heat generated per second in each lamp will be
[J & K CET 2005]
Options:
A) $ 4.35,cal $
B) $ 5.73cal $
C) $ 7.5cal $
D) $ 2.5,cal $
Show Answer
Answer:
Correct Answer: C
Solution:
The heat generated = IVt $ =2.1\times 15\times 1=31.5J $
$ =31.5/4.2cal $
$ =7.5cal. $
$ [\because 1,cal=4.2J] $
BETA
