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Answer: A Current Operated Device.
Explanation
When the emitter current is controlled by the collector current in a transistor, it is a current-operating device.
The collector is the output and the emitter is the input of the circuit. “
Minority charge carriers form the current because the collector base junction is reverse-biased. Collector holes flow into the base, while base electrons flow into the collector.
The reverse voltage saturates the current because there are so few minority charge carriers in the system. Emission into the base is enhanced because the emitter-base junction is forward biassed. The output saturation current is raised as a result.
A transistor’s output is determined by its input current, as previously stated. When the voltage is raised, the output current becomes saturated and does not increase.
Current-operated bipolar junction transistors are used.
