Device Losses MCQs

Practice Device Losses MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Power ElectronicsDevice Losses

A switch carries 20 A while its ON-state voltage drop is 2 V. Its instantaneous conduction loss during the ON interval is?

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Correct Answer: C. 40 W

Explanation: Conduction power loss is approximately VON×I=2×20=40 W while the device is ON.

Reference: Standard power electronics: device losses

Question 2

Power ElectronicsDevice Losses

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Correct Answer: A. 10 W

Explanation: Average conduction loss=40×0.25=10 W.

Reference: Standard power electronics: device losses