The circuit shown in the figure is used to provide regulated voltage (5 V) across the 1 kΩ resistor. Assume that the Zener diode has a constant reverse breakdown voltage for a current range, starting from a minimum required Zener current, IZmin = 2 mA 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

The circuit shown in the figure is used to provide regulated voltage (

1.	The circuit shown in the figure is used to provide regulated voltage (5 V) across the 1 kΩ resistor. Assume that the Zener diode has a constant reverse breakdown voltage for a current range, starting from a minimum required Zener current, IZmin = 2 mA 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
A.	186 Ω and 10 mW
B.	100 Ω and 40 mW
C.	100 Ω and 10 mW
D.	186 Ω and 40 mW
Answer» C. 100 Ω and 10 mW