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Question: Answered & Verified by Expert
In the circuit shown below the resistance are given in ohms and the battery is assumed ideal with emf equal to $3.0$ volts. The resistor that dissipates the most power is -
PhysicsCurrent ElectricityKVPYKVPY 2011 (SB/SX)
Options:
  • A $\mathrm{R}_{1}$
  • B $\mathrm{R}_{2}$
  • C $\mathrm{R}_{3}$
  • D $\mathrm{R}_{4}$
Solution:
1070 Upvotes Verified Answer
The correct answer is: $\mathrm{R}_{1}$


Power dissipate in $\mathrm{R}_{1}$ is maximum as its current is maximum and its resistance is also $40 \Omega$ which is higher than $\mathrm{R}_{5} \mathrm{R}_{4}$.

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