English

In a BJT, the largest current flow occurs ______. - Physics

Advertisements
Advertisements

Question

In a BJT, the largest current flow occurs ______.

Options

  • In the emitter

  • In the collector

  • In the base

  • Through CB junction

MCQ
Fill in the Blanks
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

shaalaa.com
Bipolar Junction Transistor (BJT)
  Is there an error in this question or solution?
Chapter 16: Semiconductor Devices - Exercises [Page 363]

APPEARS IN

Balbharati Physics [English] Standard 12 Maharashtra State Board
Chapter 16 Semiconductor Devices
Exercises | Q 1.1 | Page 363

RELATED QUESTIONS

In a common-base connection, a certain transistor has an emitter current of 10mA and a collector current of 9.8 mA. Calculate the value of the base current.


In a common-base connection, the emitter current is 6.28 mA and the collector current is 6.20 mA. Determine the common-base DC current gain.


Derive the relation between α and β.


With the help of a neat diagram, explain the working of the npn transistor?  


Draw the circuit diagram to study the characteristic of the transistor in common emitter mode. Draw the input and output characteristics. 


The light emitted in an LED is due to


Give the Barkhausen conditions for sustained oscillations.


What is rectification?


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 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 ______


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 ______.


For a transistor, the current ratio 'βdc' is defined as the ratio of ______.


Least doped region in a transistor ____________.


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 a transistor, the thickness of the base region ____________.


In the case of transistor, the relation between current ratios αdc and βdc 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 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 ______.


The reverse bias in a junction diode is changed from 8V to 13V, then the value of the current changes from 40μA to 60μA. The resistance of junction diode will be ______.


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 ______.


In a CE amplifier, the current gain is 80 and the emitter current is 9 mA. The base current is ______.


Explain the output characteristics of common emitter configuration of n-p-n transistor.


Define α.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×