What does a meter essentially create when connected to read voltage?

When a meter is connected to read voltage, it essentially creates a current. This is because the act of measuring voltage involves the meter allowing a small amount of current to flow through it, which is essential for the voltage reading. The meter utilizes the concept of ohmic behavior, where applying a voltage across a resistance (which the meter has internally) results in a current proportional to that voltage according to Ohm's Law (V = I × R).

In this context, the meter needs to draw some level of current to measure the voltage accurately, often referred to as the "measuring current." This tiny current does not significantly impact the overall circuit because the internal resistance of the meter is typically very high, ensuring minimal disturbance to the circuit being tested while providing a valid voltage indication.

Understanding this concept is crucial, especially in scenarios involving electrical systems, to ensure that accurate readings are taken without affecting the operation of the actual components being measured. The knowledge of how meters function in terms of current flow ties back to essential principles of electrical theory and practice required for proper installation and maintenance of elevator systems and other electrical equipment.