Electrical Engineering - RL Circuits - Discussion
Discussion Forum : RL Circuits - True or False (Q.No. 2)
2.
The resistor voltage in an RL circuit is always out of phase with the current.
Discussion:
20 comments Page 1 of 2.
Goutam said:
1 decade ago
It is true only..tan@=x/r, for x nt =0
Neeraj said:
1 decade ago
If x=0 then how can you say that it is rl circuit. It will be only resistance circuit.
If you are saying that its rl circuit then obviously its have nonzero values of r and l.
If you are saying that its rl circuit then obviously its have nonzero values of r and l.
Sajjad said:
1 decade ago
Actually the current will be out of phase with respect to voltage not voltage out of phase wrt current.
I'm not confident but thinking so.
I'm not confident but thinking so.
Naresh said:
1 decade ago
In a series RL circuit voltage across resistance is in phase with current but voltage across is out of phase (V leads I by 90 degrees).
K.Prasad said:
1 decade ago
Read the question carefully. The question is given as resistor voltage is out of phase not the voltage of total rl circuit. Because in resistor the current is always in phase with voltage.
Sadananda said:
1 decade ago
As it is RL circuilt so current lagging by voltage 90 degree.
Sourav said:
1 decade ago
@k. Prasad--.
You are wrong. Resistor voltage not always phase with current. It's happen for ideal resistor which is practicaly impossible. It always lead current by some angle.
You are wrong. Resistor voltage not always phase with current. It's happen for ideal resistor which is practicaly impossible. It always lead current by some angle.
Masti said:
1 decade ago
In any case:.
Current THROUGH RESISTOR is in phase with voltage ACROSS ""IT"".
Current THROUGH INDUCTOR LAGS the voltage ACROSS ""IT"".
Current THROUGH CAPACITOR LEADS the voltage ACROSS ""IT"".
Current THROUGH RESISTOR is in phase with voltage ACROSS ""IT"".
Current THROUGH INDUCTOR LAGS the voltage ACROSS ""IT"".
Current THROUGH CAPACITOR LEADS the voltage ACROSS ""IT"".
Sudhakar said:
1 decade ago
In RL Circuit, the resistor voltage is not in phase with the current. In this current lags the voltage.
So, I think the answer is wrong.
So, I think the answer is wrong.
Saurabh said:
1 decade ago
In resistance no doubt V & I is in phase but in case of RC circuit resultant current flow which is not in phase of voltage (lead) so due to this voltage across resistance is not in phase of current because R&C are in series and current in both are same.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers