SSC JE Electrical Engineering 2017 Set 1 Paper

Question : 118 of 200

Marks: +1, -0

The angle of a series R–L–C circuit is leadingif ____?

$X_L = 0$
R = 0
$X_C > X_L$
$X_C< X_L$

Solution:

In series R – L – C circuit

In resistor both current and voltage are in same phase.
In inductor current is lag with voltage.
In capacitor current is lead with voltage.
So angle of power factor is depend on inductive and capacitive reactance (

X_c

) > Inductive reactance then capacitive effect dominate and current is lead with voltage.

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