Question

For resistance measurement, meter contains _________

(a) high current source

(b) medium current source

(c) low current source

(d) low voltage source

The question was asked in unit test.

This key question is from Digital Multimeter in portion Electronic Instruments of Electrical Measurements

Answer 1

Right choice is (c) low current source

To explain: Usually in the measurement of resistance, meter consists of a precision low current source applied across an unknown resistance which gives a d.c. voltage.