What is the unit of resistance equivalent to volts divided by amps?

Study for the NCEA Level 2 Electricity Exam. Prepare with flashcards and multiple-choice questions; each question has hints and explanations. Get ready for your exam!

The unit of resistance is defined according to Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I), or mathematically, R = V/I. This means that when you divide the unit of voltage (volts) by the unit of current (amps), you arrive at the unit of resistance, which is the ohm.

The ohm is an essential unit in the field of electricity, serving as a measurement of how much opposition a material provides to the flow of electric current. When an electric circuit has a resistance of one ohm, it allows one ampere of current to flow when one volt of electrical potential is applied.

The other units provided, such as henries, farads, and watts, relate to different electrical properties: henries measure inductance, farads measure capacitance, and watts measure power. While they each play an important role in various electrical and electronic contexts, none of them represent resistance, which solidifies why the correct answer is ohm.

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