PYQ NEET- Current Electricity L-9

Question: Two resistors of resistance, $100 \Omega$ and $200 \Omega$ are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in $100 \Omega$ to that in $200 \Omega$ in a given time is: (2022)#

A) $1: 2$

B) $2: 1$

C) $1: 4$

D) $4: 1$

Answer: $2: 1$#

Explanation#

For parallel combination

$P=\frac{V^2}{R}$

$\frac{P_1}{P_2}=\frac{R_2}{R_1}$

$\Rightarrow \frac{P_1}{P_2}=\frac{200}{100}=\frac{2}{1}$