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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
- Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series
- Photon of frequency ν has a momentum associated with it. If c is the velocity
- A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal
- If voltage across a bulb rated 220 volt-100 Watt drops by 2.5% of its rated value
- A gas of monoatomic hydrogen is bombarded with a stream of electrons
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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