The internal resistances of an ideal voltmeter and an ideal ammeter are respectively (ideal meaning the behavior of the system is not changed when using the meter):
A)zero and zero.
B)infinite and infinite.
C)zero and infinite.
D)infinite and zero.

Question

Quizplus · Accepted Answer

An ideal voltmeter has infinite internal resistance to ensure it does not draw any current from the circuit it is measuring, thus not affecting the circuit's operation. An ideal ammeter has zero internal resistance to ensure it does not add any resistance to the circuit it is measuring, thus not affecting the circuit's operation.

The Internal Resistances of an Ideal Voltmeter and an Ideal