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The surge impedance of an underground power cable is approximately:

A400 Ohms to 500 Ohms
B4000 Ohms
C5 Ohms
D40 Ohms to 50 Ohms

Explanation

Underground cables have high capacitance due to close conductor spacing and solid insulation dielectric, yielding a lower Z_c (~40-50 Ohms).

Submitted by: mcqstutor Team More Electrical Engineering MCQs →

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