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प्रश्न
Plot a graph showing variation of current versus voltage for the material GaAs ?
उत्तर
Current - Voltage characteristics graph for GaAs:
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संबंधित प्रश्न
When a forward bias is applied to a p-n junction, it ______.
The drift current in a p-n junction is from the ______.
On increasing the reverse biases voltage to a large value in a P – N junction diode-current
Avalanche breakdown is due to ______.
Consider an npn transistor with its base-emitter junction forward biased and collector base junction reverse biased. Which of the following statements are true?
- Electrons crossover from emitter to collector.
- Holes move from base to collector.
- Electrons move from emitter to base.
- Electrons from emitter move out of base without going to the collector.
Can the potential barrier across a p-n junction be measured by simply connecting a voltmeter across the junction?
 (a) |
 (b) |
- Name the type of a diode whose characteristics are shown in figure (A) and figure (B).
- What does the point P in figure (A) represent?
- What does the points P and Q in figure (B) represent?
If each diode in figure has a forward bias resistance of 25 Ω and infinite resistance in reverse bias, what will be the values of the current I1, I2, I3 and I4?
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’ |
 |
 |
 |
Draw the circuit arrangement for studying V-I characteristics of a p-n junction diode in (i) forward biasing and (ii) reverse biasing. Draw the typical V-I characteristics of a silicon diode.
