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.Management Sciences
Category: Transistor Biasing
If the temperature increases, the value of VCE_________________?
A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
For proper amplification by a transistor circuit, the operating point should be located at the_____________ of the d.c. load line?
A. The end point
B. Middle
C. The maximum current point
D. None of the above
The biasing circuit has a stability factor of 50. If due to temperature change, ICBO changes by 1 µA, then IC will change by___________________?
A. 100 µA
B. 25 µA
C. 20 µA
D. 50 µA
For proper operation of the transistor, its collector should have___________________?
A. Proper forward bias
B. Proper reverse bias
C. Very small size
D. None of the above
If biasing is not done in an amplifier circuit, it results in________________?
A. Decrease in the base current
B. Unfaithful amplification
C. Excessive collector bias
D. None of the above
Operating point represents__________________?
A. Values of IC and VCE when signal is applied
B. The magnitude of signal
C. Zero signal values of IC and VCE
D. None of the above
The stabilisation of operating point in potential divider method is provided by_______________?
A. RE consideration
B. RC consideration
C. VCC consideration
D. None of the above
The value of VBE ___________________?
A. Depends upon IC to moderate extent
B. Is almost independent of IC
C. Is strongly dependant on IC
D. None of the above
For germanium transistor amplifier, VCE should_______________for faithful amplification?
A. Be zero
B. Be 0.2 V
C. Not fall below 0.7 V
D. None of the above
The leakage current in a silicon transistor is about_____________ the leakage current in a germanium transistor?
A. One hundredth
B. One tenth
C. One thousandth
D. One millionth
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