Question

The isolation includes common supply voltage sources and common grounds on each side of the isolation barrier.

(a) True

(b) False

This question was posed to me during an internship interview.

The question is from Single Channel Telemetry System topic in division Biomedical Telemetry of Biomedical Instrumentation

Answer 1

Correct choice is (b) False

For explanation: It is False. Three methods are used in the design of isolation amplifiers: (i) transformer isolation (ii) optical isolation (iii) capacitive isolation. Isolation amplifiers are commonly used for providing protection against leakage currents. The isolation includes different supply voltage sources and different grounds on each side of the isolation barrier.