physics

A variable capacitor is connected to an ac source. what effect does decreasing the capacitance have on the reactance and current in this circuit?
Reactance Current
A) increases decreases
b) decreases no change
c) decreases increases
d) increases increases
e) no change no change

asked by seema
  1. Xc= 1/2pi*f*C

    current= constant/Xc= constant*f*C

    posted by bobpursley
  2. Current remains constant. Answer is E.

    posted by Adam

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