Um rol circuit is a circuit containing a resistance and an inductance as shown in fig..
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If an alternating voltage V = V0 sin 2πft, is put across the circuit, it is observed that a steady state current, I = I0 sin 2πft will flow along the circuit. It can be shown that the maximum or peak value of the current is given by:
Some equation
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Z is called the impedance of the circuit.
RC circuits
An RC circuit
Consider a simple circuit as shown in figure where an alternating current voltage is connected in series with a capacitor of known capacitance connected in series with a resistor of low resistance.
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