Question

State True or False :

Collector current depends on temperature.

• A. True
• B. False

Answer 1

The correct option is A True

As the temperature of a transistor increases, the collector current will increase because:

1. Intrinsic semiconductor current between the collector and base increases with temperature. Its flow through the biasing resistors drives the base more positive, increasing forward bias on the base-emitter diode. For a silicon diode, Simpson quotes an increase of $2mA$ for a ${10}^{o}C$ temperature rise.
2. The base-emitter voltage required for a given collector current will decreasedecrease. This decrease is about $-2.5mV{/}^{o}C$.