Electronic Devices

In an n-p-n common emitter (CE) transistor the collector current changes from 5 \(\mathrm{mA}\) to \(16 \mathrm{~mA}\) for the change in base current from \(100~ \mu \mathrm{A}\) and \(200 ~\mu \mathrm{A}\), respectively. The current gain of transistor is __________.