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JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES
1
Medium
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Analyzing
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Statement I: In a common-emitter transistor amplifier the input current is much less than output current.
Statement II: The common-emitter transistor amplifier has very high input impedance.
Statement II: The common-emitter transistor amplifier has very high input impedance.
View answer and explanation
Correct option: C
Statement I is true; Statement II is false
Option C (Statement I is true; Statement II is false) is correct because in a common-emitter amplifier, the output current is much larger than the input current, but the input impedance is relatively low.
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