The ratio of heat dissipated per second through the resistance and in the circuit given below is

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Solution

Q.
The ratio of heat dissipated per second through the resistance $5 Ω$ and $10 Ω$ in the circuit given below is [2024]

1 4 : 1

2 1 : 1

3 2 : 1

4 1 : 2

Ans.
(3)

As parallel combination so, p.d. is same $P = \frac{V^{2}}{R} \Rightarrow P \propto \frac{1}{R}$

$\frac{P_{1}}{P_{2}} = \frac{R_{2}}{R_{1}} = \frac{10}{5} = \frac{2}{1}$

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