Q. Two similar mutually coupled coils have a total inductance of 900 mH and coefficient of coupling 0.5. The self inductance of each coils is

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Q. For a high pass filter attenuation = 0 at f = 0.

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Q. Two voltages are v1= 100 sin (ωt + 15°) and v2 = 60 cosωt, then

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Q. If A = 16 ∠64°, (A)^0.5 is

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Q. One commercial unit of energy is equal to

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Q. Two coupled coils with self inductances of 4 mH and 16 mH are connected in series. The maximum possible value of inductance can be

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Q. In using KCL it is necessary that current leaving a node is written as negative.

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Q. A resistor is rated at 0.75 watt, 1 kΩ. Its current rating is

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Q. If Z(s) has a pole at origin, the realization leads to

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Q. A series resonant circuit has inductance L. If L is increased, the resonant frequency

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Q. In a coupled coil the primary has 100 turns and secondary has 200 turns. The primary produces, a flux Φ = e^-t. The coefficient of coupling is 1. The voltages induced in secondary is

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Q. If absolute potential of A is - 8 V and that of B is - 16 V, VAB is equal to

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Q. An RLC series circuit is excited by 200 V, 100 Hz supply. The current is 20 A. If R = 10 Ω, XL = 50 Ω, XC is

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Q. For a given voltage four heating coils will give maximum heat when connected

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Q. A system defined by dy/dt + y = x is initially at rest, and x = u(t) sin 2t then the forced response is K sin (2t - θ). The value of θ given by

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Q. A two branch tuned circuit has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. If R is increased, the dynamic resistance

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Q. In a resistor the current is i and the voltage is v. The rate of dissipation of heat at any time t is

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Q. When two port networks are connected in cascade, it is more convenient to use hybrid parameters.

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Q. The three sides of an admittance triangle denote

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Q. A step voltage E is applied to an R-L series circuit. At t = 0, the current in the circuit is

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