NEIEP Mechanics Practice Exam

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Prepare for the NEIEP Mechanics Exam with multiple choice questions, hints, and detailed explanations. Ace your test and advance your career!

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What is the calculated voltage when the resistance is 87 ohms and the current is 0.225 amperes?

17.775 volts
19.575 volts
20.25 volts
15.4 volts

The correct answer is: 19.575 volts

To determine the calculated voltage when given resistance and current, you can use Ohm's Law, which states that voltage (V) is equal to the product of current (I) and resistance (R). The formula is expressed as: \[ V = I \times R \] In this case, the resistance is noted as 87 ohms and the current as 0.225 amperes. Plugging these values into the formula gives: \[ V = 0.225 \, \text{A} \times 87 \, \Omega \] Carrying out the multiplication: \[ V = 19.575 \, \text{volts} \] Therefore, the calculated voltage is 19.575 volts. This aligns with the choice that accurately reflects the calculation based on the given parameters. The other choices do not match this calculation, indicating that they either stem from incorrect arithmetic or different values that do not correspond with the provided figures for resistance and current.