The current gain of a transistor in a common base
arrangement in 0.98 . Find the change in collector current corresponding to a
change of 5.0 mA in emitter current . What would be the change in base current?

Answer

A

Explanation

Given, ` alpha = 0.98 ` and `Delta i_e = 5.0 mA `
From the defination of , `alpha = (Delta i_c) / (Delta i_e) `
Change in collector current, ` Delta i_c = (alpha ) (Delta i_e) = (0.98) (5.0) mA = 4.9mA `
Further, change in base current, ` Delta i_b = Delta i_e - Delta i_c = 0.1 mA `.