Electrical Engineering - Circuit Theorems and Conversions - Discussion

Discussion :: Circuit Theorems and Conversions - True or False (Q.No.3)

3. 

A practical current source has a finite internal resistance.

[A]. True
[B]. False

Answer: Option A

Explanation:

No answer description available for this question.

Xyz said: (Aug 22, 2011)  
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: (Sep 26, 2012)  
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: (Jun 28, 2013)  
If there is no resistance, available current source is present, but there is no voltage drop, so resistance must be present there.

Mukku said: (Aug 17, 2013)  
Being practical current source it has finite internal resistance otherwise it is infinite in case of ideal.

Uma said: (Dec 16, 2013)  
If it is a practical ct source then it has finite resistance if it ideal ct source then resistance is zero.

Pravin said: (Feb 17, 2014)  
Ideally resistance is zero but practically is not possible.

Prashant Singh said: (Mar 5, 2014)  
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: (Feb 9, 2015)  
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: (Jul 1, 2015)  
In Ideally case the resistance is zero but practically not possible.

Sujeet Kumar said: (Oct 3, 2015)  
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.

Dheeraj Burnwal said: (Dec 7, 2016)  
Practical means which exist in real life so some resistance.

Mallikarjun Kh said: (Jun 2, 2017)  
The Practical current source consists that "current source in parallel with small internal resistance". But in the ideal current source, there is no internal resistance means that parallel circuit is open.

Rajesh said: (Jul 4, 2017)  
Actually, there is no practical current sources.

Rajakumar said: (Jul 11, 2019)  
Actually, ideal current source has infinite internal resistance but a practical current source has high resistance.

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