A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have?
Options
A. 310 Ohm
B. 400 Ohm
C. 410 Ohm
D. 550 Ohm
E. None of the above
Correct Answer
410 Ohm
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