A coil of negligible resistance is connected in series with a 90 resistor across a 120 V, 60 Hz line. An ac voltmeter reads 90 V across the resistance, then the inductance of the coil will be ?
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Step 1
Step 1: Identify the given values: - Resistance, \( R = 90 \, \Omega \) - Supply voltage, \( V_{s} = 120 \, \text{V} \) - Frequency, \( f = 60 \, \text{Hz} \) - Voltage across the resistor, \( V_{R} = 90 \, \text{V} \) Show more…
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