Current Electricity Charging Discharging Of Capacitors Question 548
Question: What is the ratio of heat generated in R and 2R
[DCE 2003]
Options:
A) 2 : 1
B) 1 : 2
C) 4 : 1
D) 1 : 4
Show Answer
Answer:
Correct Answer: A
Solution:
Both R and 2R in parallel ( V ? constant) So using $ P=\frac{V^{2}}{R} $
Therefore $ \frac{P _{1}}{P _{2}}=\frac{R _{2}}{R _{1}} $
Therefore $ \frac{H _{1}}{H _{2}}=\frac{R _{2}}{R _{1}}=\frac{2}{1} $
BETA
