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Amplifiers – 2 – 3

61. Decibel is defined in terms of :

(a) Voltage ratio
(b) Current ratio
(c) Power ratio
(d) Any of the above

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

62. An amplifiers power is changed from 10 watts to 20 watts. The equivalent AB gain will be :

(a) 2 dB
(b) 3 dB
(c) 6 dB
(d) 10 dB

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

63. A push pull amplifier balances out :

(a) Odd harmonics
(b) Even harmonics
(c) Both a and b
(d) None of these

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

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