Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical PowerEasy2 minPYQ_2023

PhysicsEasysingle choice

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

Options:

Answer:

Solution:

Thermal energy is given by
$H = P \times t = \frac{V ^{2}}{R} \times t$
Here, voltage $V$ is same.
$∴ \frac{H _{1}}{H _{2}} = \frac{\frac{V ^{2} t}{R}}{\frac{V ^{2} t}{3 R}} = 3 : 1$

Stream:BITSATSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power

⏱ 2mℹ️ Source: PYQ_2023

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