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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
- Electromagnets are made of soft iron because soft iron has
- There is a ring of radius r having linear charge densityλ and rotating with a uniform
- 10 mA current can pass through a galvanometer of resistance 25 ohm.
- The ratio of volumes of nuclei (assumed to be in spherical shape) with respective
- The de-broglie wavelength of an electron in 4th orbit is
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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