Electrical Engineering - Capacitors - Discussion
Discussion Forum : Capacitors - General Questions (Q.No. 15)
15.
A 12 kHz voltage is applied to a 0.33 
F capacitor, and 200 mA of rms current is measured. What is the value of the voltage?
F capacitor, and 200 mA of rms current is measured. What is the value of the voltage?Discussion:
14 comments Page 1 of 2.
Sharath said:
1 decade ago
We know that
I=(V/Xc)
and
Xc=(1/2(pi)fc)
hence,
Xc= 40.19
therefore : V= 40.19*200mA
V=8V
I=(V/Xc)
and
Xc=(1/2(pi)fc)
hence,
Xc= 40.19
therefore : V= 40.19*200mA
V=8V
(2)
Deepak kumar said:
1 decade ago
One condenser takes 4.4 amp at 280, 50 Hz the value of the condenser.
(1)
Bijendra kumar said:
8 years ago
One hydro alternator has 20 poles and rotates at 3300rpm. Then it's frequency is. Please explain the answer.
(1)
Khushal Rajgor said:
1 decade ago
What is about inductive reactance and also resistance?
Rajkumar said:
1 decade ago
An inductor electrical resistance when used in ac circuit is called inductive resistance.
Parneet kaur said:
1 decade ago
@Khushal.
Resistance is the property of a material to oppose the flow of electric current.
Resistance is the property of a material to oppose the flow of electric current.
MIR HAMID said:
8 years ago
The Inductor is property which opposed the direction of a current. And resistance opposed the current.
Hassan Ahmed EId said:
8 years ago
After calculation Xc = 40.21102, V= iXc but I= 200mA in rms therefore I = 0.2828.
Therefore E = 0.2828 x 40.21102 = 11.375A.
Therefore E = 0.2828 x 40.21102 = 11.375A.
D Shwetha said:
7 years ago
Xc or XL or Z(Impedance) or Resistance all units are same (Ohm) instead of R, above anyone also we can use
R= Xc or XL or Z.
R= Xc or XL or Z.
Shwetha said:
6 years ago
Here, N=120f/p.
F=3300*20/120 = 550HZ.
F=3300*20/120 = 550HZ.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers