In a properly biased PNP transistor operating in active region, the emitter terminal is _______.
more positive than the base
For a PNP transistor in the active region:
- Emitter-Base junction: forward biased
- For a p-n junction to be forward biased: the p-side (emitter) must be at a higher potential than the n-side (base).
- Therefore, the emitter is more positive than the base.
- Collector-Base junction: reverse biased (collector more negative than base for PNP).
Similar Questions
A PNP transistor is operating in active region. If the emitter voltage decreases such that the emitter becomes less positive than the base while the biasing condition of the collector-base junction remains unchanged, the transistor will enter _______.
A PNP transistor is fabricated with an increased base doping concentration while keeping all other physical dimensions and doping levels constant. What is the effect on the transistor's performance?
Important Questions from Bipolar Junction Transistor
Find $I_C$, $V_{BE}$=0.7V.
- Voltage gain of common emitter amplifier with $R_E$ is given as :
Match the following :
List – I (Biasing of BJT) List – II (Functions) a. E-B junction forward bias and C-B junction reverse bias i. Very low gain amplifier b. Both E-B and C-B junctions forward bias ii. Saturation condition c. E-B junction reverse bias and C-B junction forward bias iii. High gain amplifier d. Both E-B and C-B junctions reverse bias iv. Cut-off condition Codes :
The doping concentration of n-p-n transistor are
i. 5 × 1018 / cm3
ii. 1017 / cm3
iii. 2 × 107 / cm3Identify the regions in the above order i, ii and iii.
For the BJT to be biased in its linear or active operating region :
(a) the base-emitter Junction must be forward biased
(b) the base-collector Junction must be reverse biased
(c) the base-emitter Junction must be reverse biased
(d) the base-collector Junction must be forward biased
