Measurement of resistance and inductance of a choke coil using 3 voltmeter method theory
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1. Measure the DC resistance of the resistance and the coil resistance and sum up both the resistance to calculate the total resistance. The coil resistance in the AC circuit is somewhat less than the DC resistance.
2. Now, connect the Series LR circuit to AC source and measure the circuit current. I= V/Z so, Z= V/I
3. The circuit is equal to;
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The choke coil parameters we are going to measure in this 3-voltmeter method are – the inductance, resistance as all choke coils have inherent resistance in addition to their inductance. We also measure the quality factor and power absorbed by the given choke coil.
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