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प्रश्न
Differentiate between the threshold voltage and the breakdown voltage for a diode.
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उत्तर
| Threshold voltage | Breakdown voltage | |
| (i) | The forward voltage at which the current through the p-n junction starts increasing rapidly is known as the threshold voltage. | Reverse voltage at which the p-n junction breakdown occurs is called the breakdown voltage. |
| (ii) | The magnitude of this voltage is lower than the breakdown voltage. | The magnitude of this voltage is higher than the threshold voltage. |
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संबंधित प्रश्न
(i) Explain with the help of a diagram the formation of depletion region and barrier potential in a pn junction.
With reference to semiconductor devices, define a p-type semiconductor and a Zener diode.
Draw a labelled diagram of a full wave rectifier. Show how output voltage varies with time if the input voltage is a sinusoidal voltage.
The graph shown in the figure represents a plot of current versus voltage for a given semiconductor. Identify the region, if any, over which the semiconductor has a negative resistance.
With reference to Semiconductor Physics,
Name the diode that emits spontaneous radiation when forward biased.
The expected energy of the electron at absolute zero is called:-
Can the potential barrier across a p-n junction be measured by simply connecting a voltmeter across the junction?
Draw V-I characteristics of a p-n Junction diode.
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.
Describe briefly the following term:
breakdown voltage in reverse biasing
