If `alpha and beta` are the current gain in the CB and CE configurations respectively of the transistor circuit, then `(beta-alpha)/(alphabeta)=`

Question

If `alpha and beta` are the current gain in the CB and CE configurations respectively of the transistor circuit, then `(beta-alpha)/(alphabeta)=`

If `alpha and beta` are the current gain in the CB and CE configurations respectively of the transistor circuit, then `(beta-alpha)/(alphabeta)=`
A. 2
B. 1
C. 0.5
D. 1.5

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

Related Questions

The current gain of a common base transistor circuit is 0.96. On changing the emitter current by 10.0 mA, the change in the base current will be

2 Answers 4 Views

In a common emitter transistor amplifier, the output resistance is `500Omega` and the current gain `beta=49`. If the power gain of the amplifier is `5

2 Answers 5 Views

In a CE transistor amplifier, there is a current and voltage gain associated with the circuit. In other words there is a power gain. Considering power

2 Answers 6 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 r.m.s. value of the base current ofa transistor is `10mu`A. What is the current gain (`beta`) if the peak value of the a.c. collector current is 1

2 Answers 4 Views

For a transistor, working as common emitter amplifier , the current gain is 45. What will be the current gain when the same transistor is worked as co

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

In a common base transistor circuit, the current gain is 0.98. On changing the emitter current by 5.00 mA, the change in collector current is

2 Answers 5 Views

If the current gain is 100, then the emitter current in a transistor for a base current of 5 mA, is

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)`
`therefore beta-alpha=alpha/(1-alpha)-alpha`
`=(alpha-alpha +alpha^2)/(1-alpha ) =alpha^2/(1-alpha)` and `alphabeta=(alpha alpha)/(1-alpha)=alpha^2/(1-alpha)`
`therefore (beta-alpha)/(alphabeta)=(alpha^2/(1-alpha))xx((1-alpha)/alpha^2)=1`

6 views Answered 2023-02-05 15:29