Advertisements
Advertisements
प्रश्न
For a transistor β =75 and IE = 7.5 mA. The value of α is ______
विकल्प
0.1
0.66
0.75
0.98
Advertisements
उत्तर
For a transistor β =75 and IE = 7.5 mA. The value of α is 0.98.
APPEARS IN
संबंधित प्रश्न
In a BJT, the largest current flow occurs ______.
Draw the circuit symbol for NPN and PNP transistors. What is the difference in the Emitter, Base, and Collector regions of a transistor?
With the help of a neat circuit diagram, explain the transistor as an amplifier?
Draw the circuit diagram to study the characteristic of the transistor in common emitter mode. Draw the input and output characteristics.
Give the Barkhausen conditions for sustained oscillations.
Describe the function of a transistor as an amplifier with the neat circuit diagram. Sketch the input and output wave forms.
In the circuit shown in the figure, the BJT has a current gain (β) of 50. For an emitter-base voltage VEB = 600 mV, calculate the emitter-collector voltage VEC (in volts).
A transistor has a voltage gain A. If the amount βA of its output is applied to the input of the transistor, then the transistor becomes oscillator, when ______.
A common emitter amplifier is designed with n-p-n transistor (α = 0.99). The input impedance is 1 kΩ and the load is 10 kΩ. The voltage gain will be ______
The condition to convert an amplified signal into an oscillating signal is ______
A transistor having α = 0.8 is connected in common emitter configuration. When the base current changes by 6 mA, then the change in collector current is ______.
Least doped region in a transistor ____________.
In an npn transistor, the collector current is 24 mA. If 80% of electrons reach collector, its base current in mA is ______.
In a transistor in CE configuration, the ratio of power gain to voltage gain is ____________.
In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be: ____________.
For a common emitter configuration, if 'α' and 'β' have their usual meanings, the correct relationship between 'α' and 'β' is ______.
The current gain `alpha` of a transistor is 0.95. The change in collector current corresponding to a change of 0.4 mA in the base current in a common emitter arrangement is ______.
In the case of transistor, the relation between current ratios αdc and βdc is ______.
In common emitter amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2K `Omega` and voltage gain is 75, the load resistance used in the circuit is ______.
In a p-n-p transistor circuit, the collector current is 10 mA. If 90% of the holes emitted from the emitter reach the collector, ______.
The reverse bias in a junction diode is changed from 8V to 13V, then the value of the current changes from 40μA to 60μA. The resistance of junction diode will be ______.
In a CE amplifier, the current gain is 80 and the emitter current is 9 mA. The base current is ______.
Explain the output characteristics of common emitter configuration of n-p-n transistor.
When an n-p-n junction transistor is used as an amplifier in common emitter mode, ______.
In a transistor (common emitter configuration) the ratio of power gain to voltage gain is (α and β are current ratios) ______.
For a common emitter transistor configuration the ratio of `I_c/I_E` = 0.96, then the current gain in this configuration is ______.
In the case of constants ‘α’ and ‘β’ of a transistor ______.
