Question: In a JFET, when drain voltage is equal to pinch-off voltage, the depletion layers ______________?

• 1. almost touch each other
• 2. have large gap
• 3. have moderate gap
• 4. none of the above

Question: A JFET has high input impedance because _________________?

• 1. it is made of semiconductor material
• 2. input is reverse biased
• 3. of impurity atoms
• 4. none of the above

Question: A JFET has ____________ power gain?

• 1. small
• 2. very high
• 3. very small
• 4. none of the above

Question: If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ______________?

• 1. is decreased
• 2. is increased
• 3. remains the same
• 4. none of the above

Question: A JFET is a__________ driven device?

• 1. current
• 2. voltage
• 3. both current and voltage
• 4. none of the above

Question: A MOSFET has______________ terminals?

• 1. two
• 2. five
• 3. four
• 4. three

Question: The input control parameter of a JFET is __________________?

• 1. gate voltage
• 2. source voltage
• 3. drain voltage
• 4. gate current

Question: A MOSFET can be operated with________________?

• 1. negative gate voltage only
• 2. positive gate voltage only
• 3. positive as well as negative gate voltage
• 4. none of the above

Question: In a p-channel JFET, the charge carriers are _____________?

• 1. electrons
• 2. holes
• 3. both electrons and holes
• 4. none of the above

Question: A JFET is similar in operation to ___________ valve?

• 1. diode
• 2. pentode
• 3. triode
• 4. tetrode