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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:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnifying power of the astronomical telescope for normal adjustment is 50.
- Six molecules have speeds 2 units, 5 units, 3 units, 6 units, 3 units and 5 units
- The acceleration due to gravity becomes (g/2) where g=acceleration due to gravity
- A nucleus at rest splits into two nuclear parts having radii in the ratio 1:2.
- An alternating voltage given as, V=100√2 sin100t V is applied to a capacitor
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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