Aim:-
1. To measure drain current đŒđ , at different values of gate voltage .
2. To measure drain current đŒđ , for different values of drain â source voltage . To plot input /output characteristics curves and evaluate the parameters.
Apparatus:- JFET (BFW10), Bread board, Regulated Power supply (0 â 2 V) and (0 â 12 V), Ammeters (0 â 20 mA), Voltmeter V1 (0 â 2V), Voltmeter V2, (0 â 10V), Connecting wires (Single Strand).
Theory:- A Junction Field-Effect Transistor (JFET) is a three-terminal semiconductor device used for amplification or switching electronic signals. Its operation is based on the control of current flow between two of its terminals (the source and the drain) by a voltage applied to the third terminal (the gate). The drain current (ID) of the JFET is controlled by the application of reverse- biased voltage between gate and source terminals (VGS). The relationship between ID and VGS is defined by the well-known Shockleyâs equation.
