Advertisements
Advertisements
प्रश्न
In a transistor amplifier, IC = 5.5 mA , IE = 5.6 mA. The current amplification factor β is ______
पर्याय
45
50
55
60
Advertisements
उत्तर
In a transistor amplifier, IC = 5.5 mA , IE = 5.6 mA. The current amplification factor β is 55.
APPEARS IN
संबंधित प्रश्न
Why are the emitter, the base, and the collector of a BJT doped differently?
Derive the relation between α and β.
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 light emitted in an LED is due to
Explain the need for a feedback circuit in a transistor oscillator.
Sketch the static characteristics of a common emitter transistor and bring out the essential features of input and output characteristics.
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.

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 the symbol for a transistor, the arrow head points in the direction of the ____________.
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 ______.
Ve, Vb, and Ve are emitter, base, and collector voltage respectively for npn transistor in CE mode. Amplifier works for the combination of biasing voltage equal to ______.
In an npn transistor, the base current is 100 µA and the collector current is 10 mA. The emitter current is ______.
In a transistor in CE configuration, the ratio of power gain to voltage gain is ____________.
In switching circuit, transistor is in ON state, values of IE and lB are 10 mA and 0.8 mA respectively and RL is 2 k`Omega`. If VCE is 7.6 V, then VCC is ____________.
For a common emitter configuration, if 'α' and 'β' have their usual meanings, the correct relationship between 'α' and 'β' is ______.
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 ____________.
A transistor when connected in common emitter mode has a ____________.
A change of 9.0 mA in the emitter current brings a change of 8.9 mA in the collector current. The value of current gain β will be ______.
For an ideal diode, the current in the following arrangement is ______.

A common emitter amplifier has a voltage gain of 50, an input impedance of 100Ω and an output impedance of 2000Ω. The power gain of the amplifier is ______.
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 ______.
Define β
When an n-p-n junction transistor is used as an amplifier in common emitter mode, ______.
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 ______.
