Q149 / 150 · MHT CET 2011 · Physics

To use a transistor as an amplifier

Correct answer
A
the emitter base junction is forward biased and the base collector junction is reverse biased
B
no bias voltage are required
C
both junctions are forward biased
D
both junctions are reverse biased

Solution

This is general configuration, emitter is forward biased and collector is reverse biased w.r.t. the base.

Hence, the correct answer is option: 'A'.

Relevant Questions

In a common emitter transistor amplifier, AC current gain is , the load resistance is and input resistance of the transistor is . The voltag20 Apr, 2026 (M)Junction Transistors
In a transistor, comparing the doping of emitter, base and collector, the part which is heavily doped and that which is lightly doped are re19 Apr, 2026 (E)Junction Transistors
In an NPN transistor, the collector current is 28 mA. If 80% electrons reach the collector, its base current in mA is18 Apr, 2026 (E)Junction Transistors
In common emitter configuration of transistor amplifier, , and represent the input resistance, load resistance and the a.c. current gain res17 Apr, 2026 (E)Junction Transistors
In a transistor amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is a16 Apr, 2026 (M)Junction Transistors
In common emitter amplifier, a change of mA in the base current causes a change of mA in the collector current. If input resistance is k and15 Apr, 2026 (E)Junction Transistors