If a variable voltage source is set to 12 volts. To what voltage must it be adjusted to decrease the circuit current by 25%?

Name: If a variable voltage source is set to 12 volts. To what voltage must it be adjusted to decrease the circuit current by 25%?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

To decrease the current by 25%, the voltage must be decreased by 25% as well, assuming resistance remains constant (Ohm's Law: V = IR). 25% of 12 volts is 3 volts, so the voltage should be decreased to 12 - 3 = 9 volts.

If a Variable Voltage Source Is Set to 12 Volts