For transistor action,which of the following statements are correct `:` (a) Base, emitter and collector regions should have similar size and doping co

Question

For transistor action,which of the following statements are correct `:` (a) Base, emitter and collector regions should have similar size and doping co

For transistor action,which of the following statements are correct `:`
(a) Base, emitter and collector regions should have similar size and doping concentrations.
(b) The base region must be very thin and lightly doped.
(c ) The emitter junction is forward biased and collector junction is reverser biased.
(d) Both the emitter junction as well as the collector junction are forward baised.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

In a transistor output characteristics commonly used in common emitter configuration, the base current `I_(B)`, the collector current `I_(C)` and the

2 Answers 4 Views

In an n-p-n transistor circuit, the collector current is 9 mA. If 90% of the electrons emitter reach the collector, find the base current and emitter

2 Answers 5 Views

In the study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98 then the ratio of collector current to base curr

2 Answers 4 Views

In an n-p-n transistor, the collector current is 10 mA. If 90% of the electrons emitted reach the collector, then the emitter current will be

2 Answers 4 Views

A transistor is used in Common-emitter mode in an amplifier circuits. When a signal of 20 mV is added to the base-emitter voltage, the base current ch

2 Answers 5 Views

In a transistor circuit, the emitter current is 50 mA and base current in 2 mA. The collector current is

2 Answers 6 Views

In a p-n-p transistor the emitter current is 10 mA and the collector current is 9 mA . Then the base current is

2 Answers 5 Views

In p-n-p transistor the base current is 1 mA and the collector current is 10 mA . The emitter current is

2 Answers 4 Views

For a transistor, the current amplification factor is 4. when the transistor is connected in common emitter configuration, the change in collector cur

2 Answers 5 Views

The current gain of a transistor in common emitter configuration is 80. If the emitter current be 8.1 mA , then the collector current will be

2 Answers 6 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - b
(b ) and ( c). For a transistor `beta= ( I_(C ))/( I_(B))`
`I_(B) = ( I_(C ))/( beta) ` (or ) `R_("input")= (V_("input"))/( V_(B)) =(V_("input"))/( I_(C))= beta,` i.e., `R_("input ")prop (I)/( I_(C ))`
Therefore `R_("input")` is inversly proportional to the collector current. For high collector curren, the `R_("input") ` should be small for which the base region must be very thin and lightly doped for a transistor action, the emitter junction is forward biased and collector junction is reverse biased.