Advertisements
Advertisements
Question
In an unbiased p-n junction, the majority of charge carriers (that is, holes) in the p-region diffuse into the n-region because of
Options
the potential difference across the p-n junction
the higher hole concentration in p-region than that in n-region
the attraction of free electrons of n-region
the higher concentration of electrons in the n-region than that in the p-region
Advertisements
Solution
the higher concentration of electrons in the n-region than that in the p-region
APPEARS IN
RELATED QUESTIONS
The barrier potential of a p-n junction depends on
(i) type of semiconductor material
(ii) amount of doping
(iii) temperature
Which one of the following is correct?
What do you mean by leakage current in a diode?
Distinguish between avalanche breakdown and Zener breakdown.
Write a short note on diffusion current across the p-n junction.
Define barrier potential.
Draw the circuit diagram of a half wave rectifier and explain its working.
What is an LED? Give the principle of its operation with a diagram.
Four silicon diodes and a 10 Ω resistor are connected as shown in the figure below. Each diode has a resistance of 1 Ω. Find the current flows through the 10 Ω resistor.
Determine the current flowing through 3 Ω and 4 Ω resistors of the circuit given below. Assume that diodes D1 and D2 are ideal diodes.
In the given figure of a voltage regulator, a Zener diode of breakdown voltage 10 V is employed. Determine the current through the load resistance, the total current and the current through the diode. Use diode approximation.
