Class 12 NEET Physics Semiconductor Electronics Part 1

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Question : 28 of 100
 
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For transistor action
(1) Base, emitter and collector regions should have similar size and doping concentrations.
(2) The base region must be very thin and lightly doped.
(3) The emitter-base junction is forward biased and base-collector junction is reverse biased.
(4) Both the emitter-base junction as well as the base collector junction are forward biased.
Which one of the following pairs of statements is correct?
(2010 Mains)
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