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
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 is the base of a transistor made thin and is lightly doped?
The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current?
Derive the relation between α and β.
Which method of biasing is used for operating a transistor as an amplifier?
For a transistor IC = 15 mA, IB = 0.5 mA. What is the current amplification factor?
Explain the working of the PNP transistor?
Draw the circuit symbol for NPN and PNP transistors. What is the difference in the Emitter, Base, and Collector regions of a transistor?
The light emitted in an LED is due to
Explain the current flow in an NPN transistor.
What is rectification?
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 ______
If l1, l2, l3 are the lengths of the emitter, base and collector of a transistor, then ____________.
In the symbol for a transistor, the arrow head points in the direction of the ____________.
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 ______.
If `alpha`-current gain of a transistor is 0.98. What is the value of `beta`- current gain of the transistor?
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 ____________.
Which of the following regions of a transistors are, respectively, heavily dopped and lightly dopped?
In case of npn transistors, the collector current is always less than the emitter current because ______.
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 ______.
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 ______.
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 ______.
For a transistor, αdc and βdc are the current ratios, then the value of `(beta_"dc"-delta_"dc")/(alpha_"dc".beta_"dc")`
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 ______.
The collector current in a common-emitter transistor amplifier is 4 mA. When the base current is increased by 20 µA, the collector current increases to 6 mA. The current gain is ______.
Define peak value of alternating signal.