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ETO ETO Exam papers 📅 Jun 2025

Exam Question

With Respect to circuit breakers:

(a) Compare the effectiveness of a current limiting circuit breaker with that of a HRC fuse. (6)

(b) A coil having a resistance of 10 ohm and an inductance of 0.15 H is connected in series with a capacitor across a 100 V, 50 Hz supply. If the current and the voltage are in phase what will be the value of the current in the circuit and the voltage drop across the coil? (10)

Exam question diagram

Reference Answer

(a) Compare the effectiveness of a current limiting circuit breaker with that of a HRC fuse.
Feature
Current Limiting Circuit Breaker
HRC Fuse

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