Question

9. A circuit that combines a zener regulator and an emitter follower is referred to as A. An emitter regulator B. A follower regulator C. A zener follower D. A zener diode 10. Small load resistances that would overload a CE amplifier can be used with an emitter follower because an emitter follower A. steps up impedance B. amplifies high frequencies better C. has a higher voltage gain D. cannot amplify current 11. The emitter-follower amplifier has a A. low input impedance and low distortion. B. high input impedance and high distortion C. high input impedance and low distortion D. low input impedance and high distortion 12. A Darlington connection typically has a A. very high input impedance and can produce large output currents. B. very low input impedance and can produce large output currents C. very high input impedance and can produce only small output currents D. very low input impedance and can produce only small output currents 13. A Darlington connection comprised of npn and pnp transistors is called a A. stationary Darlington. B. Duo-Darlington C. supplementary Darlington D. complementary Darlington. 14. With amplifier class C operation, the collector current flows for A, the entire cycle B. half the cycle C. less than half the cycle D. 56 milliseconds 15. Harmonics are A. multiples of a frequency. B. instruments that provide sounds with metal reeds C. circuits used in audio amplifiers D. equations used in amplifier design

Answer 1

9 : C zener follower

10: A steps up impedance

11: C high input impedance and low distortion

12: A high input impedance and can produce large output currents

13: D complementary darling ton

14: C less than half cycle

15: A mutiples of a frequency