Electronic Access Control Level I Practice Test 2025 – Complete Exam Prep

The correct answer indicates a misunderstanding of Ohm's Law. Ohm's Law is fundamentally defined by the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. The traditional formulas of Ohm's Law can be expressed in different ways based on how these elements are manipulated.

The commonly accepted forms of Ohm's Law include:

- Voltage = Current x Resistance (V = I x R)

- Current = Voltage / Resistance (I = V / R)

- Resistance = Voltage / Current (R = V / I)

The formula given in the selected answer suggests a relationship that is not valid under Ohm's Law since it incorrectly depicts the variables. Instead of showing a proportional relationship between voltage, current, and resistance, it misrepresents these components. In this context, understanding that R = E x I does not align with Ohm's Law is crucial, as it contains an incorrect multiplication of the voltage (E) by the current (I), which does not yield resistance and does not fit the established equations of Ohm's Law. This is why identifying this expression correctly highlights its absence within the fundamental definitions provided by Ohm's Law.

Recognizing the correct formulations of Ohm's Law