Question

A series circuit consists of a resistance of 6 ohms and
inductance of 20mH is connected to a single phase AC
supply of y(t) = 230sin(628t - 45). Calculate the impedance
of the series circuit and the expression for current passing
through it.​

Answer 1

(a) An ac circuit as shown in the figure has an inductor of inductance L and a resistor of resistance it connected in series. Using the phasar diagram, explain why the voltage in the circuit will lead the current in phase.

(b) The potential difference across the resistor is 160V and that across the inductor is 120V. Find the effective value of the applied voltage. If the effective current in the circuit be 1.0A. calculate the total impedance of the circuit.

(c) What will be the potential difference in the circuit when direct current is passed through the circuit?

Explanation:

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