Question

Ratio of thermal energy released in two resistors $R$ and $3R$ connected in parallel in an electric circuit is :

• A. $1:3$
• B. $3:1$
• C. $1:1$
• D. $1:27$

Answer 1

Answer: (B)

$H=\frac{V^2}{R}\times t$
$\frac{H_1}{H_2}=\frac{\frac{V^{2}t}{R}}{\frac{V^{2}t}{3R}}=3:1$