A light emitting diode(LED) has a voltage drop of 2 volt across it and passes a current of 10 mA when it operates with a 6 volt battery through a limiting resistor R. The value of R is

Options

(a) 40 kΩ
(b) 4 kΩ
(c) 200 kΩ
(d) 400 kΩ

Correct Answer:

400 kΩ

Explanation:

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