[amp_mcq option1=”Loose” option2=”Tight” option3=”Critical” option4=”None of the above” correct=”option2″]
Transistors
32. At parallel resonance, the ratio $$\frac{{\text{L}}}{{\text{C}}}$$ is ___________
[amp_mcq option1=”Very large” option2=”Zero” option3=”Small” option4=”None of the above” correct=”option3″]
Detailed SolutionAt parallel resonance, the ratio $$\frac{{\text{L}}}{{\text{C}}}$$ is ___________
33. In the double tuned circuit, if the mutual inductance between the two tuned circuits is decreased, the level of resonance curve ___________
[amp_mcq option1=”Remains the same” option2=”Is lowered” option3=”Is raised” option4=”None of the above” correct=”option2″]
34. Transistor biasing is done to keep ___________ in the circuit
[amp_mcq option1=”Proper direct current” option2=”Proper alternating current” option3=”The base current small” option4=”Collector current small” correct=”option4″]
Detailed SolutionTransistor biasing is done to keep ___________ in the circuit
35. In series resonance, there is ___________
[amp_mcq option1=”Voltage amplification” option2=”Current amplification” option3=”Both voltage and current amplification” option4=”None of the above” correct=”option3″]
36. Thermal runaway occurs when ___________
[amp_mcq option1=”Collector is reverse biased” option2=”Transistor is not biased” option3=”Emitter is forward biased” option4=”Junction capacitance is high” correct=”option3″]
37. In a pnp transistor, the current carriers are ___________
[amp_mcq option1=”acceptor ions” option2=”donor ions” option3=”free electrons” option4=”holes” correct=”option4″]
Detailed SolutionIn a pnp transistor, the current carriers are ___________
38. Transistor biasing represents ___________ conditions
[amp_mcq option1=”a.c.” option2=”d.c.” option3=”both a.c. and d.c.” option4=”none of the above” correct=”option3″]
Detailed SolutionTransistor biasing represents ___________ conditions
39. At parallel resonance, the net reactive component circuit current is ___________
[amp_mcq option1=”Capacitive” option2=”Zero” option3=”Inductive” option4=”None of the above” correct=”option2″]
Detailed SolutionAt parallel resonance, the net reactive component circuit current is ___________
40. The circuit that provides the best stabilization of operating point is ___________
[amp_mcq option1=”Base resistor bias” option2=”Collector feedback bias” option3=”Potential divider bias” option4=”None of the above” correct=”option3″]
Detailed SolutionThe circuit that provides the best stabilization of operating point is ___________