Transfer characteristics [output voltage (V0) vs input voltage

Home » Modern Physics » Semiconductor Electronics : Materials, Devices and Simple Circuits » Question

Transfer characteristics [output voltage (V₀) vs input voltage (V₁)] for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used :

1. in region III
2. both in region (I) and (III)
3. in region II
4. in region (I)

Correct Option: B

I → ON
II → OFF
In II^nd state it is used as a amplifier it is active region.