Current Electricity Charging Discharging Of Capacitors Question 532

Question: Two wires have resistance of 2W and 4W connected to same voltage, ratio of heat dissipated at resistance is

[UPSEAT 2001]

Options:

A) 1 : 2

B) 4 : 3

C) 2 : 1

D) 5 : 2

Show Answer

Answer:

Correct Answer: C

Solution:

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

Therefore $ \frac{H _{1}}{H _{2}}=\frac{R _{2}}{R _{1}}=\frac{4}{2}=\frac{2}{1} $