In a regulated power supply, two similar 15 V zeners are connected in series. Th

Question

In a regulated power supply, two similar 15 V zeners are connected in series. The input voltage is 45 V d.c. If each Zener has a maximum current rating of 300 mA, what should be the value of the series resistance?

Options:

A . 10 Ω

B . 50 Ω

C . 25 Ω

D . 40 Ω

Answer: Option B

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