मराठी

The graph of potential barrier versus width of depletion region for an unbiased diode is shown in graph A. In comparison to A, , graphs B and C are obtained after biasing the diode in different ways.

Advertisements
Advertisements

प्रश्न

The graph of potential barrier versus width of depletion region for an unbiased diode is shown in graph A. In comparison to A, graphs B and C are obtained after biasing the diode in different ways. Identify the type of biasing in B and C and justify your answer

‘A’ ‘B’ ‘C’
टीपा लिहा
Advertisements

उत्तर

B - reverse biased

In the case of a reverse-biased diode, the potential barrier becomes higher as the battery further raises the potential of the n side.

C - forward biased

Due to the forward bias connection, the potential of P side is raised and hence the height of the potential barrier decreases.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2022-2023 (March) Sample

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

With the help of neat labelled circuit diagram explain the working of half wave rectifier using semiconductor diode. Draw the input and output waveforms.


In the following diagram 'S' is a semiconductor. Would you increase or decrease the value of R to keep the reading of the ammeter A constant when S is heated? Give reason for your answer.


Diffusion in a p-n junction is due to ______.


The expected energy of the electron at absolute zero is called:-


On increasing the reverse biases voltage to a large value in a P – N junction diode-current


When an electric field is applied across a semiconductor ______.

  1. electrons move from lower energy level to higher energy level in the conduction band.
  2. electrons move from higher energy level to lower energy level in the conduction band.
  3. holes in the valence band move from higher energy level to lower energy level.
  4. holes in the valence band move from lower energy level to higher energy level.

Consider an npn transistor with its base-emitter junction forward biased and collector base junction reverse biased. Which of the following statements are true?

  1. Electrons crossover from emitter to collector.
  2. Holes move from base to collector.
  3. Electrons move from emitter to base.
  4. Electrons from emitter move out of base without going to the collector.

In the circuit shown in figure, when the input voltage of the base resistance is 10 V, Vbe is zero and Vce is also zero. Find the values of Ib, Ic and β.


Which charge carriers are present in large numbers in an n-type semiconductor?


Which expression applies Ohm's law to reverse-biased resistance?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×