197. A 5 m A change in zener current produces a 50 mV change in zener voltage. What is the zener impedance?
A. 1 SI
B. 0.1 SI
C. 100 SI
D. 10 SI
198. A certain regulator has a no-load voltage of 6 V and a full-load output of 5.82 V. What is the load regulation?
A.3.09%
B.2.87%
C.5.72%
D. none of the above
199. What is true about the breakdown voltage in a zener diode?
A. It decreases when load current increases
B. It destroys the diode
C. It equals current times the resistance
D. It is approximately constant
200. Which of these is the best description for a zener diode?
A. zener current
B. zener voltage
C. zener voltage as well as zener current
D. none of the above
201. A zener voltage regulator is used for load currents
A. high
B. very high
C. moderate
D. small
202. A zener voltage regulator will cease to act as a voltage regulator if zener current becomes
A. less than load current
B. zero
C. more than load current
D. none of the above
203. If the doping level is increased, the breakdown voltage of the zener
A. remains the same
B. is increased
C. is decreased
D. none of the above
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