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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
- A spherical shell of radius 10cm is carrying a charge q. If the electric potential
- A 1m long wire of diameter 0.31 mm has a resistance of 4.2Ω. If it is replaced by
- If we study the vibration of a pipe open at both ends
- A disc of mass 100 g is kept floating horizontally in air by firing bullets
- If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd orbit, it emits
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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