Advertisements
Advertisements
Question
During the formation of a p-n junction ______.
Options
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.
Advertisements
Solution
During the formation of a p-n junction diffusion current remains almost constant but the drift current increases till both currents become equal.
RELATED QUESTIONS
A student wants to use two p-n junction diodes to convert alternating current into direct current. Draw the labelled circuit diagram she would use and explain how it works.
Explain, with the help of a circuit diagram, the working of n-p-n transistor as a common emitter amplifier.
Two identical p-n junction may be connected in series with a battery in three ways. The potential difference across the two p-n junctions are equal in
The potential barrier existing across an unbiased p-n junction is 0.2 volt. What minimum kinetic energy a hole should have to diffuse from the p-side to the n-side if (a) the junction is unbiased, (b) the junction is forward-biased at 0.1 volt and (c) the junction is reverse-biased at 0.1 volt?
Calculate the current through the circuit and the potential difference across the diode shown in figure. The drift current for the diode is 20 µA.
What are the readings of the ammeters A1 and A2 shown in figure. Neglect the resistance of the meters.
(Assume that the resistance of each diode is zero in forward bias and is infinity in reverse bias.)
Draw the current-voltage characteristics for the device show in figure between the terminals A and B.
(Assume that the resistance of each diode is zero in forward bias and is infinity in reverse bias.)
If in a p-n junction diode, a square input signal of 10 V is applied as shown Then the output signal across RL will be ______
Zener breakdown occurs in a p-n junction having p and n both:
The formation of the depletion region in a p-n junction diode is due to ______.
