Question

In case of common emitter p-n-p transistor input characteristic is a graph drawn

• A. with $I_C$ on y-axis and $V_{CE}$ on x-axis keeping $I_B$ constant
• B. with $I_B$ on y-axis $V_{BE}$on x-axis keeping $V_{CE}$ constant
• C. with $I_C$ on y-axis $I_B$ on x-axis keeping $V_{CE}$ constant
• D. with $V_{BE}$ on y-axis and $V_{CE}$ x-axis keeping $I_B$ constant

Answer 1

The correct option is B with $I_B$ on y-axis $V_{BE}$on x-axis keeping $V_{CE}$ constant

For common emitter p-n-p transistor, input characteristic is a graph drawn between input current and input voltage at constant output voltage. For common emitter p-n-p transistor, $I_B$ is input current, $V_{BE}$ is input voltage and $V_{CE}$ is an output voltage hence, input characteristic curve is drawn with $I_B$ on y-axis $V_{BE}$ on x-axis keeping $V_{CE}$ constant.