Advertisements
Advertisements
प्रश्न
For a transistor IC = 15 mA, IB = 0.5 mA. What is the current amplification factor?
Advertisements
उत्तर
Current amplification factor, β = `("I"_"c")/("I"_"B") = 15/0.5 = 30`
संबंधित प्रश्न
Why is the base of a transistor made thin and is lightly doped?
Why are the emitter, the base, and the collector of a BJT doped differently?
Which method of biasing is used for operating a transistor as an amplifier?
The light emitted in an LED is due to
The output of the following circuit is 1 when the input ABC is

Sketch the static characteristics of a common emitter transistor and bring out the essential features of input and output characteristics.
Describe the function of a transistor as an amplifier with the neat circuit diagram. Sketch the input and output wave forms.
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 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 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 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 ______.
In switching circuit, transistor is in ON state. Values of IC and IB are 5.2 mA and 10 µA respectively and value of RC is 1 k`Omega`. If Vcc is at 5.5 V, then VCE is ______.
In an npn transistor, the collector current is 24 mA. If 80% of electrons reach collector, its base current in mA is ______.
ln switching circuit, transistor is in ON state and values of IC and IB are 4.2 mA and 5 µA respectively and RC= l k`Omega` and RB= 300 k`Omega`. If VBE = 0.5 V, find the value of VBB.
In a transistor in CE configuration, the ratio of power gain to voltage gain is ____________.
Which of the following regions of a transistors are, respectively, heavily dopped and lightly dopped?
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 ____________.
In a transistor, the thickness of the base region ____________.
In the case of transistor, the relation between current ratios αdc and βdc is ______.
A transistor is connected in C - E mode. If collector current is 72 × 10-5 A and α = 0.96, then base current will be ______.
In a study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98. The collector current is 3mA, then base current will be approximately ______.
In the common-emitter configuration of a transistor, the current gain is more than 1 because [lb, le, and lc are base, emitter, and collector currents respectively] ______
The base current in common emitter mode of the transistor changes by 10 µA. If the current gain of the transistor is 50, then change in collector current is ______.
The transfer ratio of a transistor is 50. The input resistance of the transistor when used in the CE configuration is 1K Ω. The peak value for an AC input voltage of 0.01 V of collector current is ______.
The current amplification factor for a transistor in its common emitter mode is 50. The current amplification factor in the common base mode of the transistor 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 ______.
