For CE transistor amplifier, the audio signal voltage across the collector resistance of is . If the current amplification factor of the transistor is 100 and the base resistance is , then the input signal voltage is:
15 mV
10 mV
20 mV
30 mV
Related Questions
In a properly biased transistor
Both depletion layers are equally large
Both depletion layers are equally small
Emitter-base depletion layer is large but base-collector depletion layer is small
Emitter-base depletion layer is small but base-collector depletion layer is large
Which of the following configurations of a transistor offers the highest input impedance?
Common Base
Common Emitter
Common Collector
None of these
In a common emitter amplifier the input signal is applied across
Anywhere
Emitter-collector
Collector-base
Base-emitter
In a CE, transistor circuit, the emitter current is
More than the collector current
Less than the collector current
Less than the base current
Equal to the difference of the collector current and the base current
In a triode amplifier, the value of maximum gain is equal to
Half the amplification factor
Amplification factor
Twice the amplification factor
Infinity
A transistor can be used as an:
Insulator
Transformer
Oscillator
Rectifier
The plate current in a triode valve is given where is in milliampere and and are in . If and , then for and , what is the value of and grid cut off voltage
K ≈ 1.54 x 10⁻³ and Vg_off = -6V
K ≈ 2.54 x 10⁻³ and Vg_off = -5V
K ≈ 1.54 x 10⁻² and Vg_off = -4V
K ≈ 3.54 x 10⁻³ and Vg_off = -7V
The plate resistance of a triode is and mutual conductance is . What will be the value of amplification factor
50
75
A npn transistor is connected in common emitter configuration in a given amplifier. A load resistance of is connected in the collector circuit and the voltage drop across it is 0.8 V. If the current amplification factor is 0.96 and the input resistance of the circuit is , the voltage gain and the power gain of the amplifier will respectively be:
4 3.84
369 3.84
4.4
4 3.69
In the case of constants of a transistor
{\rm{\beta }} < {\rm{ }}1,$${\rm{\alpha }} > 1
{\rm{\beta }} > {\rm{ }}1,$${\rm{\alpha }} < 1