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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
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A tuned amplifier circuit is used to generate a carrier frequency of 2 MHz
- The direction of magnetic line of force of a bar magnet is
- The resistance of an ammeter is 13Ω and its scale is graduated for a current
- The maximum kinetic energy of the photoelectrons depends only on
- The moment of inertia of a rod about an axis through its centre and perpendicular
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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