ECE :: Network Analysis and Synthesis
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In figure, capacitor is uncharged. The switch is closed at t = 0 at t = 0+ di/dt is
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In a series RLC circuit, R = 2 kΩ, L = 1H and
The resonant frequency is -
The function Z(s) has a pole at infinity if
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An input voltage V(t) = 10 2 cos (t + 10°) + 10 3 cos (2t + 10°)V is applied to a series combination of resistance R = 1 kΩ inductance L = 1H. The resulting steady-state current i(t) in ampere is
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A thermal power plant has an efficiency of 0.4. If 0.6 kg of coal is burnt to generate 1 kWh, the calorific value of coal is
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An inductance having XL = 5 Ω and a capacitance having XC = 5 Ω are connected in parallel across 100 V, 50 Hz supply. The current drawn from source is
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In figure the total inductance of the circuit is
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In the network of figure, the voltage drops across R1, R2, R3 are 6 V, 8 V and 12 V with polarities as shown. The value of R3 is
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Assertion (A): Millman's theorem helps in replacing a number of current sources in parallel by a single current source.
Reason (R): Maximum power transfer theorem is applicable only for dc, circuits.
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= 0.1 e-1000t. Therefore 
at t = 0+ equals -100 A/s.
.
Therefore, calorific value = 
