Measuring methods for R and C
LAB SESSION 01
Introduction to the Measuring Methods of Resistance and Capacitance
Different Valued Resistors,
DMM (Digital Multimeter)
THEORY & PROCEDURE:
The purpose of this experiment is to acquaint you with the equipment, so do not
rush. Learn how to read the meter scales accurately, and take your data carefully.
You must become comfortable with the instruments if you expect to perform your
future job function in a professional manner.
“Part 1: Resistance Measurement”
METHOD 1 : Resistance Measurement using VOM/ DMM:
Resistance is never measured by an ohm-meter in a live network, due to the
possibility of damaging the meter with excessively high currents and
obtaining readings that have no meaning.
Always start with the highest range of the instrument and switch down to the
proper range successively.
Use the range in which the deflection falls in the upper half of the meter scale.
Try to ascertain the polarity of dc voltages before making the measurement.
Whenever measuring the resistance of a resistor in a circuit, note whether there