1.

What is the relation between voltage and current in AC circuit containing only capacitance?

Answer»

Current (I) is leading the voltage by 90°. 

I = V/XC amps. 

XC = 1/2πfC ohms.

P = I * V * cosϕ watts. (Where cosϕ is 90 because current is leading the voltage by 90°. So cosϕ 90° = 0) 

∴ P = I * V * 0 = 0 watts. 



Discussion

No Comment Found

Related InterviewSolutions