Advertisements
Advertisements
Question
In a transistor amplifier, IC = 5.5 mA , IE = 5.6 mA. The current amplification factor β is ______
Options
45
50
55
60
Advertisements
Solution
In a transistor amplifier, IC = 5.5 mA , IE = 5.6 mA. The current amplification factor β is 55.
APPEARS IN
RELATED QUESTIONS
Which method of biasing is used for operating a transistor as an amplifier?
In a common base configuration, the transistor has an emitter current of 10 mA and a collector current of 9.8 mA. The value of base current is ______
For a transistor β =75 and IE = 7.5 mA. The value of α is ______
Explain the working of the PNP transistor?
With the help of a neat diagram, explain the working of the npn 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.
The principle based on which a solar cell operates is ____________.
The output of the following circuit is 1 when the input ABC is

Transistor functions as a switch. Explain.
A transistor of α = 0.99 and VBE = 0.7 V is connected in the common-emitter configuration as shown in the figure. If the transistor is in the saturation region, find the value of collector current.

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).

In a common emitter amplifier, the input resistance is 1000 Ω, the peak value of Input signal voltage is 5 mV, and β = 60. The peak value of output current is
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 ______
For a transistor, the current ratio 'βdc' is defined as the ratio of ______.
In the study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98 then the ratio of collector current to base current will be ______.
In a transistor in CE configuration, the ratio of power gain to voltage gain is ____________.
In an npn transistor circuit, the collector current is 10 mA. If 90% of the electrons emitted reach the collector, the emitter current (IE) and base current (IB) are given by ____________.
In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. Then change in the base current 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 transistor amplifier, base-emitter junction is forward biased and collector emitter junction is reverse biased. The current gain is ______.
In common emitter mode of transistor, the d.c. current gain is 20, the emitter current is 7 mA. The collector current is ______.
For an ideal diode, the current in the following arrangement 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 ______.
How is a transistor biased for operating it as amplifier?
In a CE amplifier, the current gain is 80 and the emitter current is 9 mA. The base current is ______.
In the case of constants ‘α’ and ‘β’ of a transistor ______.
