Give the equation for Ohm's Law.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Get ready for the UA STAR Test. Study with flashcards and multiple choice questions, featuring hints and detailed explanations. Ace your exam!

Multiple Choice

Give the equation for Ohm's Law.

Explanation:
Ohm’s Law shows how voltage, current, and resistance relate: voltage equals current times resistance (E = I × R). To express resistance in terms of voltage and current, rearrange this equation to R = E / I. Since E represents voltage in the problem, R = E / I is the form that matches Ohm’s Law for solving for resistance. The other forms would not reflect how current scales with voltage and resistance: they would misrepresent the relationship by multiplying rather than dividing, or by swapping the roles of the variables.

Ohm’s Law shows how voltage, current, and resistance relate: voltage equals current times resistance (E = I × R). To express resistance in terms of voltage and current, rearrange this equation to R = E / I. Since E represents voltage in the problem, R = E / I is the form that matches Ohm’s Law for solving for resistance. The other forms would not reflect how current scales with voltage and resistance: they would misrepresent the relationship by multiplying rather than dividing, or by swapping the roles of the variables.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy