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You are measuring the current in a circuit that is operated by a 24 V DC power s...
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You are measuring the current in a circuit that is operated by a 24 V DC power supply. The ammeter measures 48 mA. Later, you notice that the current has dropped to 40 mA. Eliminating the possibility of a resistance change, you conclude that the voltage has changed. How much has the voltage of the power supply changed?
0%
0%
0%
75%
25%