How is the resistance of electric flow through a circuit measured?

The resistance of electric flow through a circuit is measured in Ohms. The Ohm is defined as the amount of resistance that will allow one ampere of current to flow when one volt of electrical pressure is applied. This relationship is described by Ohm's Law, which states that voltage (V) equals current (I) multiplied by resistance (R) – formulated as V = I × R. Thus, if we want to understand how much a material opposes electric current, we look at its resistance in Ohms.

The other units mentioned relate to different aspects of electricity. Volts measure the electrical potential or pressure in a circuit, Ampere measures the flow of electric current, and Force is not a unit pertinent to measuring electric properties in a circuit. Understanding these distinctions is crucial in grasping the fundamentals of electrical concepts in radiography and other applications.