Question 527Electricity & Electronics - Assistant Engineer

70% to pass

A voltage amplifier has a calculated voltage gain of 5. Which statement is true concerning input and output voltages?

AIf the input changes 2 volts, the output changes 10 volts.
BIf the input changes 5 volts, the output changes 10 volts.
CIf the input changes 10 volts, the output changes 2 volts.
DIf the input changes 10 volts, the output changes 5 volts.
AI Explanation

The correct answer is A) If the input changes 2 volts, the output changes 10 volts. This is correct because a voltage amplifier with a calculated voltage gain of 5 means that for every 1 volt change in the input, the output will change by 5 volts. Therefore, if the input changes by 2 volts, the output will change by 2 x 5 = 10 volts. The other options are incorrect because they do not accurately reflect the relationship between the input and output voltage changes based on the stated voltage gain of 5. For example, option B and D would be correct if the voltage gain was 2, not 5.

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Official Resources
46 CFR Electrical Engineering 46 CFR Machinery & Electrical USCG National Maritime Center
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