a) UJT b) CUJT c) PUT d) None of the above Ans: (c)
a) Toggle switches b) Relays c) Circuit breakers d) Fuses Ans: (a)
a) Toggle switches b) Relays c) Circuit breakers d) Fuses Ans: (b)
a) A.C. wave only b) Square wave only c) Sawtooth wave only d) Any of the above Ans: (d)
a) True b) False Ans: (b)
a) Vacuum diodes b) Vacuum tubes c) Vacuum diodes and tubes with no heaters d) Triodes e) Pentodes Ans: (c)
a) Zero b) Very small c) In range of 100 to 1000 ohms d) Very large Ans: (c)
a) Small b) Zero c) Of the order of 5 pf d) Very large Ans: (c)
a) Same slopes b) Completely different slopes c) Almost same slopes d) Positive and negative slope respectively Ans: (c)
a) Plate resistance b) Amplification factor c) Mutual conductance of triode d) Penetration factor Ans: (a)
a) Less than that of tetrode b) More than that of tetrode c) Equal to tetrode d) Zero Ans: (b)
a) Positive b) Negative c) Zero d) None of the above Ans: (b)
a) Dependent on the peak voltage of the plate b) Independent of the peak voltage of the plate c) Dependent on the cathode voltage d) None of the above Ans: (a)
a) 30 volts b) -30 volts c) 5 volts d) -5 volts e) -15volts Ans: (b)
a) Triode with high amplification factor b) Triode with medium amplification factor c) Tetrode with high amplification factor d) Tetrode with medium amplification factor 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 |