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You Are On Multi Choice Question Bank SET 1267

63351. Magnesia is?





63352. If f(t) = - f(- t) and f(t) satisfies Dirichlet conditions, then f(t) can be expanded in Fourier series having





63353. The hormone which promotes blood circulation?





63354. Which of the following theorems can be conveniently used to find power consumed in 10 Ω resistor in figure?




63355. In the circuit of figure is





63356. The VTH at terminals A and B is equal to





63357. Consider the following If a network has impedance (1 - j) at a specific frequency, the circuit would consists of series R and CR and LR, L and C Which of these statements is correct?





63358. Assertion (A): Power is the rate at which energy is supplied.Reason (R): Energy = VIt.





63359. The circuit in figure, the switched on at t = 0. After a long time the current through 5 Ω resistance is





63360. If A = 3 + j1 and B = 4 + j3, A - B =





63361. Two impedances 10 - j 10 and 10 + j 10 are connected in parallel. Their combined impedance is





63362. Resistivity of semiconductors is around 100 Ω-m.



63363. Two capacitors of 20 μF each are in series. The total capacitance is





63364. Thevenin's theorem is used to find current in a branch of a network. It is now desired to find current in another branch of the network


63365. In the circuit of figure the current through 5 Ω resistance at t = ∞ is





63366. In an infinite ladder Ckt as shown above each resistance of rΩ then RAB




63367. A series resonant circuit has R = 2 Ω, L = 0.1 H and C =10 μF. At resonance applied voltage = 10 ∠0 V. Voltage across inductance is likely to be





63368. The admittance parameter Y12 in the 2 port network in the figure





63369. In Homo sapiens, fertilisation occurs in the?





63370. A 20 Ω resistor, a 1H inductor and 1μF capacitor are connected in parallel the combination is driven by a unit step current. Under the steady state, source current flows through





63371. A series resonant circuit has parameters 10 ω, 1 H and 0.1 F. It is excited by a voltage v = 100 sin ωt. At resonant frequency, the power dissipated in the circuit is





63372. Assertion (A): A tree of graph contains all the nodes of the graph.Reason (R): The number of links is always less than the number of tree branches.





63373. Cells are connected in series to increase





63374. The low pass filter characteristic shown in figure realizable.



63375. Assertion (A): The s domain impedance of a series R-L circuit is R + sL irrespective of initial conditions.Reason (R): Complex frequency s = σ + jω.





63376. If Va = 10 ∠0, Vb = 10 ∠ -120° and Vc = 10 ∠ -240°, then Va2 and Va0 are





63377. A wire has a diameter d and resistance R. If the diameter is made 3d, the length and material remaining the same, the new value of resistance will be





63378. The realization of a reactance function gives





63379. The correct relation between energy and charge is





63380. A two branch parallel tuned circuits has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. The bandwidth is 200 radians/sec. A load of resistance RL is connected in parallel. The new bandwidth will be





63381. The correct relation between joules and calories is





63382. The filter in figure, uses ideal op-amp. It is





63383. For a rectified sinusoidal wave clipped at 0.707 its peak value (figure), the average value is





63384. A voltage v = 100 sin (100 p t + 45°) V is applied to an impedance 10 + j10 ohm. The current is





63385. If P = 250 W and p.f. = 0.707 lagging, Q =





63386. Figure shows an R-L circuit. The current is i = 1 - e-t. The rate of change of current at t = 1 second is





63387. Assertion (A): Energy stored in inductance is and that in capacitance is Reason (R): Inductance and capacitance are dual of each other.





63388. The time constant of the circuit after the switch shown in the figure is opened is





63389. A series RLC circuit is at resonance at 200 Hz. If capacitance is increased to four times, the circuit will be in resonance at





63390. A system function the resonant frequency in rad/sec and bandwidth in rad/sec. is given by





63391. The temperature coefficient of copper is 0.00393 at 20° C. At 50° C the temperature coefficient is





63392. To determine the polarity of voltage drop across a resistor, it is sufficient to know





63393. A sawtooth current wave is passed through a resistance





63394. Static sheep foot roller is most effective in compacting:





63395. Assertion (A): If A = 0.5 ∠ 20°, A2 = 0.25 ∠ 40°.Reason (R): When drawing a phasor diagram, sinusoids may have the same or different frequencies.





63396. Two passive elements are connected in series and a dc voltage is applied to the circuit. The time variation of the current is shown in figure. The two elements are





63397. Which statement is incorrect for parallel resonance?





63398. If a capacitor is charged by a square wave current source the voltage across the capacitor is





63399. The equivalent resistance between terminals x and y figure is





63400. The purpose of earthing electric appliances is





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