Q.1.
A class C amplifier always drives ___________ load
Q.2.
The stabilisation of operating point in potential divider method is provided by ___________
Q.3.
In parallel resonance, there is ___________
Q.4.
The zero signal IC is generally ___________ mA in the initial stages of a transistor amplifier
Q.5.
The Q of a tuned amplifier is 50. If the resonant frequency for the amplifier is 1000kHZ, then bandwidth is ___________
Q.6.
For proper operation of the transistor, its collector should have ___________
Q.7.
Thermal runaway occurs when ___________
Q.8.
In a particular biasing circuit, the value of RE is about
Q.9.
A silicon transistor is biased with base resistor method. If ß=100, VBE =0.7 V, zero signal collector current IC = 1 mA and VCC = 6V , what is the value of the base resistor RB?
Q.10.
In a npn transistor, ___________ are the minority carriers
Q.11.
ICEO = () ICBO
Q.12.
For proper amplification by a transistor circuit, the operating point should be located at the ___________ of the d.c. load line
Q.13.
The leakage current in a silicon transistor is about ___________ the leakage current in a germanium transistor
Q.14.
In a pnp transistor, the current carriers are ___________
Q.15.
The base of a transistor is ___________ doped
Q.16.
In a transistor if ß = 100 and collector current is 10 mA, then IE is ___________
Q.17.
The Q of a tuned amplifier is generally ___________
Q.18.
The Q of an LC circuit is given by ___________
Q.19.
Tuned class C amplifiers are used for RF signals of ___________
Q.20.
The biasing circuit has a stability factor of 50. If due to temperature change, ICBO changes by 1 µA, then IC will change by ___________
Q.21.
The phase difference between the input and output voltages of a transistor connected in common collector arrangement is ___________
Q.22.
The input impedance of a transistor connected in ___________ arrangement is the highest
Q.23.
If the value of collector current IC increases, then the value of VCE ___________
Q.24.
If the temperature increases, the value of VCE ___________
Q.25.
The value of ß for a transistor is generally ___________
Q.26.
If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to ___________
Q.27.
The purpose of resistance in the emitter circuit of a transistor amplifier is to ___________
Q.28.
In the above question, what are the values of cut-off frequencies?
Q.29.
In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________
Q.30.
The output impedance of a transistor connected in ___________ arrangement is the highest