Definition: Actinometers are a device that measures the force applied to an object by moving an electric current through it. The actinometer works by measuring the resistance between two metal plates attached to the object, which can be either a conductor or an insulator, and then comparing this resistance with the expected resistance under steady-state conditions. The definition of "actinometer" is typically used in the field of physics to describe the physical property that causes the force applied by a current to vary as it travels through an electrical circuit. The actinometer is an important tool in electronics engineering, particularly for measuring voltages and currents using electromagnets. In summary, an actinometer measures the resistance between two metal plates attached to an object under steady-state conditions of electric current flow.
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