A zener diode of power rating 1.6 W is to be used as voltage regulator. If the zener diode has a breakdown of 8 V and it has to regulate voltage fluctuating between 3 V and 10 V The value of resistance R s for safe operation of diode will be
A
10 
B
12 
C
13.3 
D
13 
Text Solution
Verified by ExpertsThe correct answer is:
A
Power rating of zener diode = 1.6 W
From the diagram above,
Va - V B = 8 V Power is given by
P = Vi
Also, Vc - V A = 10V - 8V = 2V
Thus, using Ohm's law,
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