NEET Physics Semiconductor Electronics Questions Solved

The diode used in the circuit shown in the figure has a constant voltage drop of 0.5 V at all currents and a maximum power rating of 100 milliwatts. What should be the value of the resistor R, connected in series with the diode for obtaining maximum current 

(a) 1.5 Ω 
(b) 5 Ω
(c) 6.67 Ω
(d) 200 Ω

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