ECE :: Network Analysis and Synthesis
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The impedance of an RC series circuit is 12 Ω at f= 50 Hz. At f= 200 Hz, the impedance will be
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A current is flowing through a conductor with non-uniform area of cross-section. Then
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A series RL circuit has
. If a voltage 4 sint + 4t is applied, the steady state current will be -
The electrical energy required to heat a bucket of water to a certain temperature is 2 kWh. If heat losses, are 25%, the energy input is
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The current rating of a cable depends on
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In an ac circuit, the maximum and minimum values of power factor can be
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In the circuit shown in given figure, the values of i(0+) and I(∞), will be respectively
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A two branch parallel circuit has a 20 Ω resistance and 1 H inductance in one branch and a 100 μF capacitor in the second branch. It is fed from 100 V ac supply, at resonance, the input impedance of the circuit is
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The impedance matrices of two, two-port network are given by
and 
. If these two networks are connected in series, the impedance matrix of the resulting two-port network will be
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