[amp_mcq option1=”Radio frequency” option2=”Low frequency” option3=”Audio frequency” option4=”None of the above” correct=”option1″]
Detailed SolutionA tuned amplifier is used in ___________ applications
Transistors
42. ICEO = () ICBO
[amp_mcq option1=”Ô option2=”1 + a” option3=”1 + Ô option4=”none of the above” correct=”option1″]
43. If biasing is not done in an amplifier circuit, it results in ___________
[amp_mcq option1=”Decrease in the base current” option2=”Unfaithful amplification” option3=”Excessive collector bias” option4=”None of the above” correct=”option2″]
Detailed SolutionIf biasing is not done in an amplifier circuit, it results in ___________
44. The most commonly used semiconductor in the manufacture of a transistor is ___________
[amp_mcq option1=”germanium” option2=”silicon” option3=”carbon” option4=”none of the above” correct=”option2″]
45. The disadvantage of voltage divider bias is that it has ___________
[amp_mcq option1=”High stability factor” option2=”Low base current” option3=”Many resistors” option4=”None of the above” correct=”option3″]
Detailed SolutionThe disadvantage of voltage divider bias is that it has ___________
46. In a parallel LC circuit, if the input signal frequency is increased above resonant frequency then ___________
[amp_mcq option1=”XL increases and XC decreases” option2=”XL decreases and XC increases” option3=”Both XL and XC increase” option4=”Both XL and XC decrease” correct=”option1″]