EC > GATE 2018 > Zener Diode
The circuit shown in the figure is used to provide regulated voltage (5 V) across the 1KΩ resistor. Assume that the Zener diode has a constant reverse breakdown voltage for a current range, starting from a minimum required Zener current, IZmin=2mA to its maximum allowable current. The input voltage VI may vary by 5% from its nominal value of 6 V. The resistance of the diode in the breakdown region is negligible.
The value of R and the minimum required power dissipation rating of the diode, respectively, are
Correct : b
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