Advertisements
Advertisements
Question
In a BJT, the largest current flow occurs ______.
Options
In the emitter
In the collector
In the base
Through CB junction
Advertisements
Solution
In a BJT, the largest current flow occurs in the emitter.
Explanation:
Emitter is a thick, heavily doped layer. This supplies a large number of majority carriers for the current flow through the transistor
APPEARS IN
RELATED QUESTIONS
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?
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 ______
In a transistor amplifier, IC = 5.5 mA , IE = 5.6 mA. The current amplification factor β is ______
Draw the circuit symbol of the PNP transistor.
Explain the working of the PNP transistor?
With the help of a neat diagram, explain the working of the npn transistor?
The light emitted in an LED is due to
What is rectification?
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).
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 ______.
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 ______.
Which of the following regions of a transistors are, respectively, heavily dopped and lightly dopped?
A pnp transistor is used in common-emitter mode. If a change of 40 µA in base current brings a change of 2 µA in collector current with 0.04 V in base-emitter voltage, then the input resistance is ____________.
In a transistor, the thickness of the base region ____________.
A transistor having α = 0.8 is connected in a common emitter configuration. When the base current changes by 6 mA, the change in collector current is ______
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] ______
A conducting wire has length 'L1' and diameter 'd1'. After stretching the same wire length becomes 'L2' and diameter 'd2' The ratio of resistances before and after stretching is ______.
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 ______.
In a CE amplifier, the current gain is 80 and the emitter current is 9 mA. The base current is ______.
In a transistor (common emitter configuration) the ratio of power gain to voltage gain is (α and β are current ratios) ______.
In the case of constants ‘α’ and ‘β’ of a transistor ______.
