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

Question

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

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 current will be
A. 99
B. 49
C. 50
D. 98

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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

Correct Answer - B
The ratio of collector current to emitter current at constant collector base voltage is the current the amplification factor and give by
`alpha =(I_(c))/(I_(E)) = 0.98`
The ratio of collector current to the bases current at constant collector - emitter voltahe is give by
`beta = (I_(C))/(I_(B))`
These are related as `beta = (alpha)/(1-alpha)`
`rArr " " beta = (0.98)/(1-0.98) = (0.98)/(0.02) = 49`