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JEE Main202329 Jan 2023Morning ShiftPhysicsCurrent ElectricityActual

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

Options

  1. A3 : 1
  2. B1 : 1
  3. C1 : 3
  4. D1 : 27

Correct answer

A. 3 : 1

Step-by-step solution

In parallel connection, potential difference across resistors remains the same. Thermal energy released in resistor is given by H = V 2 R × t So, the ratio is H 1 H 2 = V 2 t R V 2 t 3 R = 3 R R = 3 : 1 .

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