L-R Series circuit ( inductor in series with resistor ) :
A resistor–inductor circuit (RL circuit) is an electric
circuit composed of resistors and
inductors driven by a voltage or current source. A first order RL circuit is
composed of one resistor and one inductor and is the simplest type of RL
circuit.
Using
kirchoff’s voltage law
According
to the law, the sum of voltages at junction is zero. The sum of the voltage due
to the resistance as well as the inductance should be zero.
à voltage in resistor
à voltage in inductor
time constant
steady state current
Transient curve for an LR series circuit:
R-C CIRCUIT ( Capacitor series with Resistor) :
A resistor–capacitor circuit (RC circuit) is an electric
circuit composed of resistors and capacitors driven by a voltage or current source. A first order RC circuit is composed of one
resistor and one capacitor and is the simplest type of RC circuit.
RC
circuits can be used to filter a signal by blocking certain frequencies and
passing others.
Apply
Kirchoff’s voltage law
is time constant for an RC circuit.
is maximum current in RC circuit.
In
AC Circuit :
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Type of circuit
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Impedance
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Purely resistive circuit
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Z = R
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Purely inductive circuit
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Purely capacitive circuit
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L-R Circuit
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L-C circuit
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L-C-R circuit
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