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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
- The electromagnetic theory of light failed to explain
- A spring balance is attched to the ceiling of lift.A man hangs his bag on the string
- At what height h above earth, the value of g becomes g/2 (where R=radius of earth)?
- The voltage of an a.c.supply varies with time (t) as V=120 sin 100 πt the maximum voltage
- The period of oscillation of a mass M suspended from a spring of negligible mass is T
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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