a) The average value of current in the two coils b) The r.m.s. value of currents in the two coils c) The average value of the supply voltage d) None of the above Ans: (b)
a) Wood b) Steel billets c) Zinc cells d) Furnace Ans: (a)
a) A moving coil voltmeter b) A hot wire voltmeter c) An electrostatic voltmeter d) Galvanometer e) Potentiometer Ans: (e)
a) 1 ohm. 54 watt resistor b) 500 ohms, 5 watt resistor Ans: (a)
a) Copper b) Aluminium c) Silver d) Iron Ans: (c)
a) By changing inductance only b) By changing inductance or capacitance c) By changing resistance only d) By changing capacitance only Ans: (b)
a) Energymeter b) Wheatstone bridge c) Electrostatic wattmeter d) None of the above Ans: (c)
a) Low time constant b) High time constant c) Zero time constant d) R-C time constant Ans: (b)
a) Three-phase balanced energy b) Three-phase unbalanced energy c) Single-phase energy d) Two-phase energy Ans: (b)
a) True b) False Ans: (a)
 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 |
Multiple Choice Question (MCQ) of Electronics page-13:181. The conduction in JEFT is always by the a) Majority carriers b) Minority carriers c) Holes d) Electrons e) Holes and electrons simultaneously |