ECE :: Network Analysis and Synthesis
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An R-L series circuit has R = 5 Ω and L = .01 H. It is fed by ac 50 Hz supply. The rms current in the circuit is 5 A. The active power supplied by the source is
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A particular current is made up of two components 10A dc and sinusoidal current of peak value 14.14A. The average of resultant current is
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In figure, the switch is closed at t = 0. After some time i = 6A and rate of change of current was 4A/s. The value of inductor is
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Assertion (A): In series R-L-C circuit, the current may lead or lag the voltage depending on the value of R.
Reason (R): Phase angle of an R-L series circuit is tan-1 (ωL/R).
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In figure the switch has been in position 1 for a long time. At t = 0, the switch is moved to position 2. The equation for transient current is
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An RL impedance function can also be realized as
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A step voltages is applied to RLC series circuit having R = 2 Ω, L = 1 H and C = 1 F. The transient current response will be
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Assertion (A): Superposition theorem can be used to find the output of a full wave rectifier excited by sinusoidal signal sources of different frequencies connected in series.
Reason (R): Superposition theorem is valid for all linear systems.
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A. Therefore, i = 
From these equations L = 0.5H.
. Since R = Rcr, critically damped response.