Practical Voltage Source

Answer: A. An ideal voltage source in series with small internal resistance.

A practical voltage source consists of an ideal voltage source in series with small internal resistance.

Solution

The ideal voltage source will not have any internal resistance, but it is practically impossible to have zero internal resistance. Hence the practical voltage source has a small internal resistance; it is represented in series with the ideal voltage source, as shown below.

The answer to the above question is- A practical voltage source consists of an ideal voltage source in series with small internal resistance.

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