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In an NPN transistor the collector current is 24 mA. If 80% of the electrons reach collector, its base current in mA is
Options
(a) 36
(b) 26
(c) 16
(d) 6
Correct Answer:
6
Explanation:
Since 80% of the electrons reach the collector, 20% only remain.
Base current = (20 / 80) x 24 = 6 mA
Related Questions: - The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
- Which of the following is the function of the step-up transformer?
- Two lenses of power 15 D and -3 D are placed in contact.
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The threshold wavelength for photoelectric effect of a metal is 6500 Å. The work function
- Which of the following is the function of the step-up transformer?
- Two lenses of power 15 D and -3 D are placed in contact.
- Which of the following rods of same material undergoes maximum elongation
- A galvanometer having resistance of 50 Ω requires a current of 100μA to give full
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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