JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES

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Understanding +4 | -1

LED is a

p

n

junction diode which is

View answer and explanation

Correct option: A

Forward biased

Option A is correct because an LED (Light Emitting Diode) is a p-n junction diode that emits light when it is forward biased, allowing current to flow and electrons to recombine with holes.

More Questions from SEMI CONDUCTOR DEVICES

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A PN-junction has a thickness of the order of In a

PNP

transistor the base is the

N

-region. Its width relative to the

P

-region is A solid reflects incident light and its electrical conductivity decreases with temperature. The binding in this solid is An alternating current can be converted into direct current by a A N–P–N transistor is used in inverse active mode of operation then its emitter base junction should be in In the case of constants

\mathrm{\alpha\; and\; \beta }

of a transistor