Transistors

41. A tuned amplifier is used in ___________ applications

Radio frequency
Low frequency
Audio frequency
None of the above

Detailed SolutionA tuned amplifier is used in ___________ applications

42. ICEO = () ICBO

ß
1 + a
1 + ß
none of the above

Detailed SolutionICEO = () ICBO

43. If biasing is not done in an amplifier circuit, it results in ___________

Decrease in the base current
Unfaithful amplification
Excessive collector bias
None of the above

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 ___________

germanium
silicon
carbon
none of the above

Detailed SolutionThe most commonly used semiconductor in the manufacture of a transistor is ___________

45. The disadvantage of voltage divider bias is that it has ___________

High stability factor
Low base current
Many resistors
None of the above

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 ___________

XL increases and XC decreases
XL decreases and XC increases
Both XL and XC increase
Both XL and XC decrease

Detailed SolutionIn a parallel LC circuit, if the input signal frequency is increased above resonant frequency then ___________

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