1. In the circuit shown below, the knee current of ideal
zener diode is 10 mA. To maintain 5 volts across RL in ohms and the
minimum power rating of the zener diode in mW, respectively are.....
A. 125 and 125
B. 125 and 250
C. 250 and 125
D. 250 and 250
Ans : B
2. In the circuit shown below, the Silicon NPN transistor Q
has a very high value of β. The required value of R2 in KΩ to produce IC = 1 mA is
______
A. 20
B. 30
C. 40
D. 50
Ans : C
B. 30
C. 40
D. 50
Ans : C
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