A JFET is similar in operation to ___________ valve?

Related Mcqs:

1. The output characteristics of a JFET closely resemble the output characteristics of a ___________ valve?

   A. pentode B. tetrode C. triode D. diode...

2. In class A operation, the input circuit of a JFET is ____________ biased?

   A. forward B. reverse C. not D. none of the above...

3. The gate of a JFET is ___________ biased?

   A. reverse B. forward C. reverse as well as forward D. none of the above...

4. A JFET is a__________ driven device?

   A. current B. voltage C. both current and voltage D. none of the above...

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

   A. is decreased B. is increased C. remains the same D. none of the above...

6. The input control parameter of a JFET is __________________?

   A. gate voltage B. source voltage C. drain voltage D. gate current...

7. The transconductance of a JFET ranges from ________________?

   A. 100 to 500 mA/V B. 500 to 1000 mA/V C. 0.5 to 30 mA/V D. above 1000 mA/V...

8. A certain common-source JFET has a voltage gain of 10. If the source bypass capacitor is removed, ______________?

   A. the voltage gain will increase B. the transconductance will increase C. the voltage gain will decrease D. the Q-point will shift...

9. A MOSFET differs from a JFET mainly because _________________?

   A. of power rating B. the MOSFET has two gates C. the JFET has a pn junction D. none of the above...

10. In a certain CS JFET amplifier, RD= 1kO , RS= 560 O , VDD=10V and gm= 4500 µS. If the source resistor is completely bypassed, the voltage gain is ________________?

    A. 450 B. 45 C. 2.52 D. 4.5...