Electrical Engineering - Circuit Theorems and Conversions - Discussion
Discussion Forum : Circuit Theorems and Conversions - True or False (Q.No. 3)
3.
A practical current source has a finite internal resistance.
Discussion:
15 comments Page 1 of 2.
Xyz said:
1 decade ago
The fact can be easily explained by OHMs law that whenever a voltage is applied across a conductor thn current will flow. If their is no resistance then no current.
Chip Tausch said:
1 decade ago
I figured this out by the fact that if you have INFINITE internal resistance (ie an OPEN circuit) then you will not have a very practical current source!
Kalai said:
1 decade ago
If there is no resistance, available current source is present, but there is no voltage drop, so resistance must be present there.
Mukku said:
1 decade ago
Being practical current source it has finite internal resistance otherwise it is infinite in case of ideal.
Uma said:
1 decade ago
If it is a practical ct source then it has finite resistance if it ideal ct source then resistance is zero.
Pravin said:
1 decade ago
Ideally resistance is zero but practically is not possible.
Prashant singh said:
1 decade ago
Voltage source has resistance in series whereas current source has resistance in parallel ie., resistance is now acting as conductance so it has some value of G. But for ideal G= infinite.
Sanjeev said:
1 decade ago
This is wrong answer because when you talking about practical thing than there is no meaning of infinite. If we thinking on basis of rule than infinite resistance work as open circuit it means infinite voltage drop which is not possible in practical case.
J N singh said:
1 decade ago
In Ideally case the resistance is zero but practically not possible.
Sujeet kumar said:
10 years ago
For a practical current source it has finite resistance, but when we talk about ideal current source than it has infinite resistance, the person who is saying that internal resistance is zero it is valid for ideal voltage source.
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