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Electronic Principles
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?
310 Ohm
400 Ohm
410 Ohm
550 Ohm
None of the above
Correct Answer:
410 Ohm
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