Electronic Devices and Circuits 3 December 2, 2020December 24, 2020wefru Electronic Devices and Circuits Physics MCQs, physics Question for Competitive Exams , NEET , JEE, and General physics questions 0 Created on December 02, 2020 By wefru Electronic Devices and Circuits 3 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q21) Which resistance plays a significant role in stabilization of Q-point for self-biasing circuit of BJT? Emitter resistance Collector resistance Source resistance Drain resistance 2 / 10 Q22) What is the significance of adopting an interdigitated structure of power transistors? Prevention of current crowding Maintenance of reasonable current densities Both a and b None of the above 3 / 10 Q23) Which among the below mentioned reasons is/are responsible for the occurrence of second breakdown phenomenon in power BJT? Large current Distribution of current in a non-uniform manner Excessive power dissipation All of the above 4 / 10 Q23) Which types of power transistors have the capability to withstand the higher junction temperatures? Silicon power transistors Germanium power transistors Both a and b None of the above 5 / 10 Q25) Which among the below stated parameters gets affected due to drift region in the power transistor? Breakdown voltage On-state losses Switching time All of the above 6 / 10 Q26) Which among the following oscillators are specifically preferred at high frequencies? LC oscillators RC oscillator Both a and b None of the above 7 / 10 Q27) Which among the following measures is/are adopted/used for improving the frequency stability in Colpitt's oscillator? Clapp oscillator Temperature stabilized chamber Voltage regulators All of the above 8 / 10 Q28) According to the property of tuned circuit used in LC oscillators, the decay rate is proportional to________ Shape & size of current pulse Time constant Both a and b None of the above 9 / 10 Q28) What are the consequences over the non-linear distortion by the inception of negative feedback? Level of non-linear distortion goes on increasing Level of non-linear distortion goes on decreasing Level of non-linear distortion undergoes stability None of the above 10 / 10 Q29) Stability of a transfer gain is generally defined as the reciprocal of _______ Resistivity Conductivity Sensitivity Desensitivity Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz