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Wednesday, September 11, 2013

Capacitive reactance is more when

Capacitive reactance is more when

A. capacitance is less and frequency of supply is less
B. capacitance is less and frequency of supply is more
C. capacitance is more and frequency of supply is less
D. capacitance is more and frequency of supply is more


Explanatory answer:

We know capacitive reactance reactance, Xc = 1 / 2ΠFC

Xc is inversely proportional to F and C.

Therefore Xc increases as frequency and capacitance decreases,hence the suitable answer is option A

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