Question:
A coil of 0.01-henry inductance and 1-ohm resistance is connected to 200 volt, 50 Hz ac supply. Find the impedance of the circuit and time lag between max. alternating voltage and current.
Solution:
Inductance L = 0.01 H
Resistance R = 1 ohm
Voltage = 200 V
Frequency = 50 Hz
Impedance = Z = 3.3 ohms
Phase difference = 72 × π/180 rad
Time lag in the alternating voltage and the current is 0.004 sec
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