Exam 32: Field Effect Transistors

The border between the ohmic region and the current-source region is called pinch-off.

The ______________ equals the change in drain current divided by the change in gate-source voltage for a fixed value of V_DS.

The current flow is between the drain and the gate terminals in a JFET.

Which JFET amplifier is similar to the emitter follower used with bipolar transistors?

One disadvantage of MOSFET devices is their extreme sensitivity to

For the p-channel JFET the majority current carriers in the channel are free electrons.

In general, JFETs are more temperature stable than bipolar transistors.

For a common-source amplifier, the output is taken at the

For a common-source amplifier, the input and output voltages are

A graph of drain current versus gate-source voltage for a JFET results in a transconductance curve.

JFETs are used more often than bipolar transistors to amplify small ac signals because JFETs

The MOSFET is sometimes referred to as a(n)

The ______________-off voltage is the border between the ohmic region and the current-source region.

Above the pinch-off voltage, it is common for the drain curves to have a slight upward slope.

The amount of gate-source voltage required to reduce the drain current to zero is called the gate-source ______________ voltage.

What component places the source at ground for ac signals?

When a JFET is symmetrical, the drain and source leads may be interchanged without affecting its operation.

The amount of gate-source voltage to reduce the drain current to zero is called the gate-source cutoff voltage.

The unit of g_m is

The common-source amplifier's input and output voltages are ______________ degrees out of phase.