Collector biasing involves connecting a resistor directly from the collector to base. This is also referred to as "self-biasing". If you sketch a simple transistor circuit with a collector resistor to V+ and emitter resistor to V-, and then put the collector-to-base resistor in, think about what happens when the temperature (beta, Vbe, etc.) values change in the transistor...can please help me and tell me what is collector and emitter feed back biasing