# Terms, Definitions, MCQs and Free Templates

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Which of the following statement is false?

A parallel ac circuit in resonance will

Wire-wound resistors are unsuitable for use at high frequencies because they

A steel bar needs 1200 AT to magnetise it. The voltage that must be applied to the magnetising coil of 100 turns and 10 Ω resistance is __________ volt.

The voltage induced in a loop of wire rotating in a strong and steady magnetic field is

P(s) = s4 + s3 + 2s2 + 4s + 3Q(s) = s4 + 2s3 + s Which one of the following statements in correct for above P(s) and Q(s) polynomials?

A two port network is reciprocal if and only if

Consider the following statements for a driving point function F(jω): Re F(jω) is an even function of ω and is 0 or positive for all values of ω.Im F(jω) is an even function of ω and is 0 or positive for all values of ω.Re F(jω) is an odd function of ω and is 0 […]

Consider the following statements associated with two port networks. Z12 = Z21Y12 = Y21h12 = h21AD – BC = 1 Which one of the statement given above are correct?

A 2-terminal network consists of one of the RLC elements. The elements is connected to an ac supply. The current through the element is 1 A. When an inductor is inserted in series between the source and the element, the current through the element becomes 2 A. What is this element?

A resistor R of 1 Ω and two inductor L1 and L2 of inductances 1 H and 2 H respectively, are connected in parallel. At some time, the current through L1 and L2 are 1 A and 2 A, respectively. The current through R at time t = ∞ will be

In a network containing resistances, reactances the root of the characteristic equation give for the circuit

Which one of the following statements is not a property of RL driving point impedance?

L/C has the dimension of

A network N is dual of network N if

Consider the following: Energy storage capability of basic passive elements is due to the fact thatresistance dissipates energycapacitance stores energyinductance dissipates energy Which of the above is/are correct?

The quantum numbers associated with electron motion are designed as

The two conductors of a single phase transmission line suspended in air carry currents in opposite directions. The force per unit length on each conductor varies

The network has 10 nodes and 17 branches. The number of different node power voltages would be

A capacitor used for power factor correction in single- phase circuit decreases

The transition of electron from energy level W1 to W2 is associated with emission or absorption of electro magnetic radiation of frequency f such that

For a two- port reciprocal network, the output open circuit voltage divided by the input current is equal to

Consider the following statement : If a network has an impedance of (1 – j) as a specific frequency, the circuit would consist of series R and CR and LR, L and C Which of the statement are correct?

A network contains only independent current source and resistors. If the values of all resistors are doubled, the value of the node voltage

Schrodinger wave equation is a

When Schrodinger equation is applied to the motion of electron in the field of protons, the physically acceptable solutions for the wave function exist for quantum number which are

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

Measurement of an unknown voltage with a dc potentiometer loses its advantage of open circuit measurement when

While using Maxwell bridge, the Q factor of a coil is obtained as

Consider the following statements : Tellegen’s theorem is applicable to any lumped networks.The reciprocity theorem is applicable to linear bilateral networks.Thevenin’s theorem is applicable to two- terminal linear active networks.Norton’s theorem is applicable to two-terminal linear active networks. Which of these statement are correct?

The capacitance of a parallel plate capacitor varies as per the equation C(t) = C0 (1 – cos ωt). It is connected to a battery of V volts. The equation for current is

Bandwidth will be

A function f(t) = k is

A function f(t) = k eat is __________ for (a > 0).

The transfer function of a system is given by H(s) = 1/s2 (s – 2). The impulse response of the system is

The mass of proton and electron are

In terms of classical representation of electrons

In its lowest state, the electron is bound to the field of proton by an energy equal to

Two similar coils have self inductance of 1 mH each. Coefficient of coupling is 0.5. The mutual inductance M is

Two sinusoidal waves 1 and 2 have peak values Vm1 and Vm2. Wave 1 is leading wave 2 by ∠θ. Which of the following is correct?