Electrical Engineering - RL Circuits - Discussion
Discussion Forum : RL Circuits - General Questions (Q.No. 16)
16.
Which of the following power factors results in less energy loss in an RL circuit?
Discussion:
17 comments Page 2 of 2.
Ravi Koshiya said:
9 years ago
Energy losses = I^2 * R, clearly, it's seen then it depends on are.
But, as we talk about R-L circuit, inductor comes into the picture makes energy losses depends on z instead of are only. So, if we increase XL than there will be a decrease in P.F. as well as in current. It's clear that in RL circuit low P.F. Comes with fewer energy losses.
But, as we talk about R-L circuit, inductor comes into the picture makes energy losses depends on z instead of are only. So, if we increase XL than there will be a decrease in P.F. as well as in current. It's clear that in RL circuit low P.F. Comes with fewer energy losses.
Vijay said:
9 years ago
Answer d is correct, because at pure resistance power loss is high and power factor would be 1. To less power loss in RL circuit, Power factor should be as low as possible.
Kartik Pawar said:
10 years ago
I think it should be option B because at unity pf current is less so losses will be less. But since unity pf is not possible in RL circuit so pf should be close to unity. So option B.
Shweta said:
1 decade ago
I think it would be D, because at unity pf power losses is zero.
Shweta said:
1 decade ago
I agreed with @Avinash, at zero losses pf is unity.
Avanish said:
1 decade ago
Power loss would be less at unity power factor not at low power factor.
Nilesh said:
1 decade ago
At low power factor less current flow through circuit. Power loss = I^2 R.
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