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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 temperature of a body falls from 50⁰C to 40⁰C in 10 minute. If the temperature
- The resistance of a wire is 5 ohm at 50° C and 6 ohm at 100° C. The resistance
- If an A.C. mains supply is given to be 220 V, what would be the average e.m.f.
- A wave travelling in the +ve x-direction having displacement along y-direction as 1m
- The sum of the magnitudes of two forces acting at a point is 16 N
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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