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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 drive shaft of an automobile rotates at 3600 rpm and transmits 80 HP
- The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
- A source of sound S emitting waves of frequency 100 Hz and an observer
- A metal wire of circular cross-section has a resistance R₁. The wire is now stretched
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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