The input impedance used to limit the flow of current through digital meters is accomplished by using ____.
A) field effect transistors
B) toroid current transformers
C) ammeter shunts
D) none of the above

Question

Quizplus · Accepted Answer

Field effect transistors (FETs) are commonly used in digital meters to limit the flow of current, providing high input impedance which prevents the meter from significantly affecting the circuit being measured.

The Input Impedance Used to Limit the Flow of Current