77501. The phase velocity v in a transmission line is
77502. A circuit is fed by two sources of different frequency and magnitudes 100 ∠0° V and 50 ∠30°V. The current in a particular branch is 10 ∠20° A. If the magnitudes of the sources are changed to 200 ∠0° V and 100 ∠0° V, the current in that branch should be
77503. In gases the flow of current is due to
77504. A two port network is said to be reciprocal if
77505. For the current wave i = 10 + 10 sin θ, the rms value is
77506. The impedance parameter z21 is
77507. Measurement of an unknown voltage with a dc potentiometer loses its advantage of open circuit measurement when
77508. A parallel resonant circuit can be used
77509. Which of the following theorems enables a number of voltage (or current) sources to be combined directly into a single voltage (or current) source?
77510. If Ia, Ib, Ic are line currents and Ia1 is the positive sequences component of Ia then
77511. If the numerator of Z(s) is one degree higher than denominator, Z(s) has a pole at infinity.
77512. An m derived low pass filter has fc = 1000 Hz, f∞ = 1250 Hz and m = 0.6. If m is increased, then
77513. In the two ports network shown in the figure, Z12 and Z21 are, respectively
77514. In figure, I = 2A, then V =
77515. The design of wave filter is based on characteristic impedance which is
77516. A system is said to be marginal stable if
77517. Assertion (A): In state space analysis, capacitors are taken to be in tree.Reason (R): State variable analysis is very suitable for computer solution.
77518. In the circuit shown in the given figure, V0 is given by
77519. The factor which will have least effect on the voltage at the load end of a two-wire supply circuit is
77520. If a two port network is represented by an equivalent T network, the impedance of shunt arm in terms of ABCD parameters is equal to
77521. The value of current read by ideal ammeter A in figure is __________ ampere.
77522. In ZRC (s) = constant at s = 0, the last element in first Foster cauer realization is
77523. For a full rectified sine wave, the form factor and peak factor respectively are
77524. For an RC admittance function Y,
77525. When ac current is zero, no electrons are in motion.
77526. The relation between the apparent power, actual power and reactive power is given by
77527. Quality factor will be
77528. In the circuit shown in the given figure, switch k is closed at t = 0. The circuit was initially relaxed then which one of the following sources of v(t) will produce maximum current at t = 0+?
77529. Pick the correct statement
77530. The inverse Fourier transform of is
77531. The colour on the extreme left in general purpose fixed resistors represents
77532. When a current flows through a conductor,
77533. In the analogy between electric and magnetic circuits permeability is analogous to
77534. Two port circuits are connected in parallel. To determine the response, it is more convenient to use
77535. The dual of a link is
77536. A network is said to be two port network if there is no independent source in the networkno dependent source in the networknon-linear component in the circuitno external connection exist between I/P and 0/P
77537. In a network
77538. For a series circuit of R and variable XL the admittance locus is
77539. A series RLC circuit is supplied from a variable frequency source. The resonant frequency is ω0. The voltage across L is maximum at a frequency
77540. Current in a 2H inductance in 10e-t A. Admittance of the inductor is
77541. A constant k low pass filter has fc = 1000 Hz. At f = 500 Hz, the phase shift is
77542. At resonance the network function magnitude will be
77543. Giga watt is equal to
77544. Which one of the following is a cut set of the graph in the given figure?
77545. A 3 phase star-connected load has one capacitor C in R phase and two equal resistances in Y and B phases.The phase sequence is RBY. Then
77546. Reciprocity theorem is applicable to
77547. The first and the last critical frequencies (singularities) of a driving point impedance function of a passive network having two kind of elements, are a pole and a zero respectively. The above property will be satisfied by
77548. In a circuit with capacitance connected to ac source, the rate of change of capacitor voltage is constant.
77549. Assertion (A): If Z1(s) and Z2(s) are positive real then Z1(s) + Z2(s) as well as 1/Z1(s) and 1/Z2(s) are positive real.Reason (R): The poles of a positive real function are real or occur in conjugate pairs.
77550. A variable resistance R and capacitive reactance XC are connected in series. As R is varied, the locus of Z is
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
Powered By:Omega Web Solutions