Current Electricity Charging Discharging Of Capacitors Question 519

Question: Two wires with resistances R and 2R are connected in parallel, the ratio of heat generated in 2R and R is

[DCE 1999, 2000]

Options:

A) 1 : 2

B) 2 : 1

C) 1 : 4

D) 4 : 1

Show Answer

Answer:

Correct Answer: A

Solution:

$ H=\frac{V^{2}}{R}.,t $

Therefore $ \frac{H _{1}}{H _{2}}=\frac{R _{2}}{R _{1}}=\frac{R}{2R}=\frac{1}{2} $