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Set 68 — Electronics — Amplifier Gain
Set 68 — Electronics — Amplifier Gain
10 questions · 📖 Tutor Mode · ⏱ 15 min
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Electronics — Amplifier Gain
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WAEC 2020
The voltage gain of an amplifier is defined as:
A.
Output voltage / Input voltage (A_v = V_out/V_in; can also be expressed in decibels: dB = 20log₁₀(A_v))
B.
Output current / Input current
C.
Output power / Input voltage
D.
Input voltage / Output voltage
E.
Power × resistance
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