If a sudden short circuit occurs on a power system (considered as R-L series circuit), the current wave-form c

Question

If a sudden short circuit occurs on a power system (considered as R-L series circuit), the current wave-form consists of

Decaying AC current
Decaying DC current

Let the alternator reactance be X and the power system resistance R. Which one of the following is correct ?

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Option A: The decay in (1) is caused by the increase in X but in (2) is caused by R

Explanation & Concepts:
Practice and solve "If a sudden short circuit occurs on a power system (considered as R-L series circuit), the current w..." for Electrical - Power System. The correct answer is Option A: The decay in (1) is caused by the increase in X but in (2) is caused by R. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.

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Option B: The decay in (1) is caused by R but in (2) is caused by increase in X

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Option C: The decay in both (1) and (2) is caused by R

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Option D: The decay in both (1) and (2) is caused by the increase in X

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