# 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.
Anandhu said:
4 years ago

An ideal current source has infinite resistance, but a practical current source has finite resistance.

1. Voltmeter resistance is high or finite.

2. Ammeter zero or low.

3. Voltage source zero.

4. Current source infinity.

1. Voltmeter resistance is high or finite.

2. Ammeter zero or low.

3. Voltage source zero.

4. Current source infinity.

(1)

Rajakumar said:
5 years ago

Actually, ideal current source has infinite internal resistance but a practical current source has high resistance.

RAJESH said:
7 years ago

Actually, there is no practical current sources.

Mallikarjun kh said:
7 years ago

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.

Dheeraj burnwal said:
8 years ago

Practical means which exist in real life so some resistance.

(1)

Sujeet kumar said:
9 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.

J N singh said:
9 years ago

In Ideally case the resistance is zero but practically not possible.

Sanjeev said:
10 years 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.

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.

Pravin said:
1 decade ago

Ideally resistance is zero but practically is not possible.

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