Question
A capacitor and an inductor are connected to an ac generator in two ways: in series and in parallel (see the drawing). At low frequencies, which circuit has the greater current?
The parallel circuit, because the impedance of the circuit is large due to the large reactance of the inductor. A capacitor and an inductor are connected to an ac generator in two ways: in series and in parallel (see the drawing). At low frequencies, which circuit has the greater current? The parallel circuit, because the impedance of the circuit is large due to the large reactance of the inductor. The parallel circuit, because the impedance of the circuit is small due to the large reactance of the inductor. The series circuit, because the impedance of the circuit is small due to the small reactances of both the inductor and the capacitor. The parallel circuit, because the impedance of the circuit is small due to the small reactance of the inductor. The series circuit, because the impedance of the circuit is large due to the large reactances of both the inductor and the capacitor.
Explanation / Answer
The parallel circuit, because the impedance of the circuit is small due to the small reactance of the inductor
in series XL=2pifL =0
since f is smaller
Xc=1/2pifC >>0
X=XL+Xc
in parallel
X=Xl*Xc/(XL+Xc)
