# Electrical Engineering - RC Circuits - Discussion

### Discussion :: RC Circuits - General Questions (Q.No.14)

14.

An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist:

 [A]. R = XC [B]. R > XC [C]. R < XC [D]. R = 5XC

Explanation:

No answer description available for this question.

 Danmarch said: (Jan 2, 2012) Phase angle = tan-1(Xc/R), So Xc must be greater than R.

 Mayur said: (Dec 19, 2014) Capacitor inject the reactive power.

 Nag said: (Dec 7, 2015) For pure capacitor angle = 90. If R increases then angle decreased. So increases angle R decreased.

 Hareesh said: (Jan 24, 2016) Phase angle tan-1(Xc/r). Given 45 degrees. Xc/R = tan-1 45. So Xc = R.

 Mohan said: (Jun 21, 2016) @Hareesh, What you said is right. But the question is to mention the condition for phase angle above 45 degrees so Xc>R.

 Alok Kumar Gautam said: (Sep 20, 2016) It is not tan-1. It is tan inverse.

 Pankaj said: (Mar 10, 2017) For pure capacitor angle = 90. If R increases then angle decreased. So increases angle R decreased. So, I agree with the given answer.