Q6Electronic Measurement & Instrumentation
Question
2 marks
Write down the three methods for measuring the medium resistance.
Answer
Wheatstone bridge, Voltmeter-Ammeter method, and Substitution method.
The three most common methods for measuring medium resistances ( to ) are:
1. Wheatstone Bridge Method: The standard, highly accurate null-deflection method.
2. Voltmeter-Ammeter Method: Using Ohm's law (), suitable for general purposes where high precision is not required.
3. Substitution Method: Comparing the unknown resistance with a known variable standard resistance in the same circuit.