Question

For a JFET, when VDS is increased beyond the pinch off voltage, the drain current _______

A. Increases
B. remains constant
C. decrease
D. none of the above

Answer 1

For a JFET, when VDS is increased beyond the pinch off voltage, the drain current increases.

Step-by-step explanation:

For a JFET, when VDS is increased beyond the pinch off voltage, the drain current A. Increases.

When the drain-source voltage (VDS) is increased beyond the pinch-off voltage in a JFET (Junction Field-Effect Transistor), the current flowing through the drain (ID) increases. This is because the increase in VDS creates a larger electric field across the depletion region, allowing more charge carriers to flow from the source to the drain.

For example, if the pinch-off voltage is 5V and VDS is increased to 7V, the drain current will increase compared to when VDS was below the pinch-off voltage.