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An amplifier has a voltage gain Av=1000. The voltage gain in dB is
Options
(a) 30 dB
(b) 60 dB
(c) 3 dB
(d) 20 dB
Correct Answer:
60 dB
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
- A bomb of mass 30 kg at rest exploded into two pieces of masses 18 kg
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
- The displacement of a particle varies according to the relation x=4 (cos π t + sin π t)
- A bullet of mass m moving with velocity v strikes a block of mass M at rests
- A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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Voltage gain in dB = 20log(voltagegain)
20 log(1000)= 20×3 =60dB