A transistor is used in common emitter configuration. Given its `alpha=0.9`, calculate the change in collector current when the base current changes b

Question

A transistor is used in common emitter configuration. Given its `alpha=0.9`, calculate the change in collector current when the base current changes b

A transistor is used in common emitter configuration. Given its `alpha=0.9`, calculate the change in collector current when the base current changes by `2muA`.
A. `3 muA`
B. `9 muA`
C. `18 muA`
D. `30 muA`

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

What is the current gain for a transistor used as a common emitter amplifier, if the current gain of the same transistor used in common base mode is 0

2 Answers 5 Views

The current gain of a transistor in common base mode is 0.99. What is the change in collector current if the emitter current changes by 5 mA ?

2 Answers 6 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

For a common emitter configuration , the base current is `60 muA` and the collector current is 6 mA . The current gain of transistor is

2 Answers 5 Views

In an n-p-n transistor, the current gain for common emitter configuration is 80. If the emitter current be 8.1 mA, then the base current will be

2 Answers 4 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

A p-n-p transistor is used as common base amplifier as `V_(eb) =3V` . When its emitter current changes from 13.4 mA to 20.14 mA its collector current

2 Answers 5 Views

In a transistor, the current amplification factor `alpha` is 0.9. The transistor is connected in common base configuration. The change in collector cu

2 Answers 4 Views

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

Salim Ahmed Kawsar

Correct Answer - B
`beta=alpha/(1-alpha) = 0.9/(1-0.9) = 9 " " beta=(DeltaI_C)/(DeltaI_B)`
`therefore DeltaI_C=beta. DeltaI_B " " therefore DeltaI_C=9xx2=18 muA`

4 views Answered 2023-02-05 15:29