Q. When a series RL circuit is switched on to a dc voltage, the rate of change of current is maximum at t = 0.

View solution

Q. At very low frequencies a series R-C circuit behaves as almost purely __________ .

View solution

Q. In a composite filter terminating half sections are used for impedance matching.

View solution

Q. The bridge is balanced when the value of R is

View solution

Q. When a series RL circuit having power factor angle 0 is switched on to an ac voltage Vm sin (ωt + Φ), the transient term is zero if Φ = 0.

View solution

Q. A series resonant circuit is capacitive at f = 150 Hz. The circuit will be inductive somewhere at

View solution

Q. A current increasing at the rate of 1A/s is passed through a 1 H inductor. At t = 0, i = 0. The flux linkages after 1 sec are

View solution

Q. When an ac circuit has sources of different frequencies, the only method of analysis is superposition theorem.

View solution

Q. In a Parallel connection of circuit the bandwidth in terms of R, L, C is

View solution

Q. It two voltages are v1 = 100 sin (ωt - 30°) and v2 = cos ω t then

View solution

Q. In a purely inductive ac circuit the power curve is a sinusoid of the same frequency as the voltage.

View solution

Q. The superposition theorem is applicable to

View solution

Q. The capacity of a battery is expressed in terms of

View solution

Q. In terms of z parameters, the condition for the network to be passive is

View solution

Q. Among the filter, Bessel, Butterworth and chebyshev, the filter with maximally flat response is

View solution

Q. If a two port network is represented by an equivalent T network the admittance of series arm in term of ABCD parameter is equal to

View solution

Q. In a driving point function poles and zeros must be conjugate if complex or imaginary.

View solution

Q. The storage battery used in power stations and substations is generally

View solution

Q. For an m-derived filter, attenuation is infinite when f = f∞.

View solution

Q. Assertion (A): A branch with no current through it can be replaced by an open circuit or short circuit.

Reason (R): Reciprocity theorem is applicable only if the circuit has one source.

View solution