In general, the side of a resistor that is connected to a point of higher electric potential will have a higher electric potential. Electric potential is a measure of the electric potential energy per unit charge at a particular location. It is related to the electric field strength and the distance from the source of the field. The unit of electric potential is the volt (V).
In an electrical circuit, a voltage difference (or potential difference) exists between two points. This voltage difference creates an electric field, which drives the flow of electric charges (such as electrons) through the circuit. The direction of the electric field is from high voltage to low voltage, and the direction of the current is the opposite of the direction of the electric field.
When a resistor is connected to a circuit, it will typically be connected between two points of different electric potential. The side of the resistor that is connected to the point of higher electric potential will have a higher electric potential, while the side that is connected to the point of lower electric potential will have a lower electric potential. The voltage drop across the resistor is the difference in electric potential between the two sides of the resistor.
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