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

Options

A. 99
B. 49
C. 50
D. 98

Answer

B

Explanation

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`