Question

The output characteristic of an n-p-n transistor represent:

[$I_C=$ Collector current, $V_{CE}=$ potential difference between collector and emitter, $I_B=$Base current, $V_{BB}=$ voltage given to base; $V_{BE}=$ the potential difference between base and emitter]

• A. changes in $I_C$ as $I_B$ and $V_{BB}$ are changed
• B. changes in $I_C$ with changes in $V_{CE}$($I_B$=constant)
• C. changes in $I_B$ with changes in $V_{CE}$
• D. changes in $I_C$ as $V_{BE}$ is changed

Answer 1

The correct option is B changes in $I_C$ with changes in $V_{CE}$($I_B$=constant)

The graph shown above is the output characteristic of a n-p-n transistor which is plotted as collector current $I_C$ versus $V_{CE}$ keeping $I_B=constant$ for a particular line.

Thus output characteristic of a transistor represents the change in $I_C$ with change in $V_{CE}$ keeping the base current $I_B=constant$.