1 An ideal voltage source is disconnected from any circuit T

1. An ideal voltage source is disconnected from any circuit. The following statement is true.

A. There is a current flowing through the internal resistance and therefore power used at all times.

B. There is a current flowing through the internal resistance, but no power is used.

C. An ideal voltage source has no internal resistance.

2. A practical current source is disconnected from any circuit. The following statement is true.

A. There is a current flowing through the internal resistance and therefore power used at all times.

B. There will be no current through the internal resistance.

D. There is a current flowing through the internal resistance, but no power is used.

Solution

1.An ideal voltage source has no internal resistance.(Option C)
2.There is a current flowing through the internal resistance and therefore power used at all times.(Option A)