Question 18.2

Q 18.2 Fig.P.18.2 shows a transistor which operates a relay as the switch S is closed. The relay is energized by a current of 10m A. Calculate the value Rg which will just make the relay operate . The current gain β of the transistor is 200. When the transistor conducts, its Vbe can be assumed to 0.6 Volt.

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