a) Has no current source b) Has no e.m.f. source c) Has neither of the above d) Has either of the above Ans: (b)
The above illustration is called
a) Reciprocity theorem b) Thevenin’s theorem c) Superposition theorem d) Duality Ans: (b)
a) 110 ohms b) 120 ohms c) 115 ohms d) 112.5 ohms e) 125 ohms Ans: (e)
a) Lagging b) Leading c) Zero d) Unity, Ans: (b)
a) 2 < 10° b) 2 < 30° c) 2 < -10° d) 2 < 20° Ans: (a)
a) – a – jb b) – a + jb c) A - jb d) Ja – b Ans: (c)
a) Resistance b) Voltage c) Inductance d) Capacitance Ans: (d)
a) 50 Hz b) 75 Hz c) 100 Hz d) 60 Hz Ans: (c)
a) Sinusoidal b) Oscillating c) None-oscillating d) Square wave Ans: (a)
a) 1 New b) 2 New c) 0.05 New d) 0.5 New Ans: (c)
a) Repulsion b) Attraction c) Zero d) Either (a) or (b) Ans: (b)
a) The flow of current in the electric circuit involves discontinuous expenditure of energy. b) The flow of current in the electric circuit requires energy for creating the current but not to maintain it. c) In the magnetic circuit energy is needed continuously to maintain the flux. d) In the magnetic circuit energy is needed for creating the flux initially but not to maintain it. Ans: (c)
a) 6.32 A b) 3.16 A c) 3.7 A d) 4.0 A Ans: (b)
a) The same heat as produced by a.c. when flowing through the same circuit b) The less heat than produced by a.c. when flowing through the same circuit c) The more heat than produced by a.c. when flowing through the same circuit d) 14.4 calories Ans: (a)
a) The half cycle b) The whole cycle c) Unsymmetrical part of the waveform d) The quarter cycle Ans: (b)
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 Multiple Choice Question (MCQ) of Electronics page-17:241. Which of the following statement is true? a) The saturation voltage VCF of silicon transistor is more than germanium transistor. b) The saturation voltage VCE for germanium transistor is more than silicon transistor. c) The saturation voltage VCE for silicon transistor is same as that for germanium. d) The saturation voltage VCE for silicon transistor is lower than germanium transistor. |
Multiple Choice Question (MCQ) of Electronics page-16:226. Which of the following statement is correct? a) Inner electrons are always present in the semiconductor. b) Bound electrons are always present in the semiconductor. c) Free electrons are always present in the semiconductor. d) Inner and bound electrons are always present in the semiconductor. |
Multiple Choice Question (MCQ) of Electronics page-15:211. The materials whose electrical conductivity is usually less than 1 × 106 mho/m are a) Semiconductors b) Conductors c) Insulators d) Alloys |
Multiple Choice Question (MCQ) of Electronics page-14:196. In which of the following device the base resistors are not added in the package but added externally? a) UJT b) CUJT c) PUT d) None of the above |