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單項(xiàng)選擇題

An operational amplifier, as used in todays consoles, may have a calculated gain of 5√This means that as the input changes by ()

A.1 volt, the output changes 5 volts
B.5 volts, the output changes 1 volt
C.5 volts, the output changes 10 volts
D.10 volts, the output changes 5 volts

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