1.

Input impedance of a DVM is ________(a) low(b) zero(c) high(d) mediumThe question was posed to me during an interview.My question is based upon Performance Parameters of Digital Voltmeters topic in section Electronic Instruments of Electrical Measurements

Answer»

The correct choice is (c) high

For explanation I would say: Typical input impedance of a DVM is USUALLY very high. Typical VALUE is of the order of 10 MΩ. This is usually DONE in order to reduce the LOADING effect.



Discussion

No Comment Found

Related InterviewSolutions