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प्रश्न
During the formation of a p-n junction ______.
पर्याय
diffusion current keeps increasing.
drift current remains constant.
both the diffusion current and drift current remain constant.
diffusion current remains almost constant but the drift current increases till both currents become equal.
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उत्तर
During the formation of a p-n junction diffusion current remains almost constant but the drift current increases till both currents become equal.
संबंधित प्रश्न
In an unbiased p-n junction, holes diffuse from the p-region to n-region because ______.
Write the two processes that take place in the formation of a p-n junction.
Diffusion current in a p-n junction is greater than the drift current in magnitude
When a p-n junction is reverse-biased, the current becomes almost constant at 25 µA. When it is forward-biased at 200 mV, a current of 75 µA is obtained. Find the magnitude of diffusion current when the diode is
(a) unbiased,
(b) reverse-biased at 200 mV and
(c) forward-biased at 200 mV.
Each of the resistance shown in figure has a value of 20 Ω. Find the equivalent resistance between A and B. Does it depend on whether the point A or B is at higher potential?
Find the currents through the resistance in the circuits shown in figure.
(Assume that the resistance of each diode is zero in forward bias and is infinity in reverse bias.)
An AC source is connected to a diode and a resistor in series. Is the current thorough the resistor AC or DC?
Answer in detail.
Discuss the effect of external voltage on the width of depletion region of a p-n junction.
p-n junction diode is formed
Diode and resistance are connected as shown in figure. Out of the following statements which one is TRUE?
