66. A JFET cascade amplifier employs
(a) 2 common-gate amplifiers.
(b) 2 common-source amplifiers.
(c) 1 common-gate and 1 common-source amplifier.
(d) 1 common-gate and 1 common-drain amplifier.
67. A common-drain amplifier is similar in configuration to which BJT amplifier?
(a) common-emitter
(b) common-collector
(c) common-base
(d) common-gate
68. Which type of FETs can operate with a gate-to-source Q-point value of 0 V?
(a) JFET
(b) E-MOSFET
(c)
(d)
69. The class D amplifier uses what type of transistors?
(a) JFETs
(b) BJTs
(c) MOSFETs
(d) any of the above
70. What is the input resistance (Rin(source)) of a common-gate amplifier?
(a) Rs
(b)
(c) 1 / gm
(d) none of the above
Related Posts
555555555588. The ________ configuration has an input impedance, which is other than RG. (a) common-source (b) common-gate (c) common-drain (d) None of the above- 555555555571. What common factor determines the voltage gain and input resistance of a common-gate amplifier? (a) RD (b) RL (c) (d)
- 555555555531. The isolation between input and output circuits in the ac equivalent circuit is lost in a ________ configuration. (a) common-gate (b) common-source (c) common-drain (d) None of the above
- 555555555570. What is the input resistance (Rin(source)) of a common-gate amplifier? (a) Rs (b) (c) 1 / gm (d) none of the above
- 555555555587. The depletion MOSFET circuit has a ________ input impedance than a similar JFET configuration. (a) much higher (b) much lower (c) lower (d) higher