A 10 V reference source is designed from a 30 V supply using a Zener d – McqOptions

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1.	A 10 V reference source is designed from a 30 V supply using a Zener diode and a resistance. The test current of the Zener diode is 20 mA. If the supply voltage drops to 20 V, the Zener current will be:
A.	5 mA
B.	15 mA
C.	20 mA
D.	10 mA
Answer» E.

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