How is the current in a DC circuit calculated when the voltage and resistance are known?

This question tests your understanding of Ohm's Law, the foundational formula of electronics. Ohm's Law states that voltage equals current multiplied by resistance (E = I x R). To find the current (I) when voltage (E) and resistance (R) are known, you must rearrange the formula algebraically. Dividing both sides by R isolates the current, resulting in the formula I = E / R. Therefore, current equals voltage divided by resistance. Distractors that suggest multiplying the values or reversing the division (resistance divided by voltage) are mathematically incorrect variations of this essential relationship.