Current Electricity Charging Discharging Of Capacitors Question 127
Question: In a Ag voltameter 2.68 gm of silver is deposited in 10 min. The heat developed in $ 20,\Omega $ resistor during the same period will be
Options:
A) 192 kJ
B) 192 J
C) 200 J
D) 132 kJ
Show Answer
Answer:
Correct Answer: A
Solution:
$ I=\frac{m}{Zt}=\frac{2.68}{\frac{108}{96500}\times 10\times 60}=\frac{2.68}{108}\times \frac{965}{6}\approx 4,A $ Energy $ =I^{2}Rt=4^{2}\times 20\times 600=192kJ. $
BETA
