If the crystal frequency changes with temperature, we say that crystal has___________temperature coefficient?
(A) Positive
(B) Zero
(C) Negative
(D) None of the above
An LC oscillator cannot be used to produce ____________frequencies?
(A) High
(B) Audio
(C) Very low
(D) Very high
In an LC transistor oscillator, the active device is___________?
(A) LC tank circuit
(B) Biasing circuit
(C) Transistor
(D) None of the above
An oscillator employs___________feedback?
(A) Positive
(B) Negative
(C) Neither positive nor negative
(D) Data insufficient
In a phase shift oscillator, we use____________RC sections?
(A) Two
(B) Three
(C) Four
(D) None of the above
The application where one would most likely find a crystal oscillator is____________?
(A) Radio receiver
(B) Radio transmitter
(C) AF sweep generator
(D) None of the above
The power gain in a transistor connected in___________arrangement is the highest?
(A) common emitter
(B) common base
(C) common collector
(D) none of the above
The input impedance of a transistor connected in___________arrangement is the highest?
(A) common emitter
(B) common collector
(C) common base
(D) none of the above
The value of ß for a transistor is generally____________?
(A) 1
(B) less than 1
(C) between 20 and 500
(D) above 500
When current feedback (negative) is applied to an amplifier, its input impedance _____________?
(A) Is decreased
(B) Is increased
(C) Remains the same
(D) None of the above