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This document describes a graphical method for measuring the resistance (R), inductance (L), and impedance (Z) of an iron-core coil using only an AC voltmeter, a known resistor, an AC source, and graph paper. The method involves connecting the coil in series with a resistor, measuring the voltages, and constructing a triangle diagram from which R, L, and Z can be calculated using provided formulas. Two examples of using this method are shown and calculated.

Author

Bogdan Alexandru Rusu

Language

EN