How does electricity flow in a circuit?
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WHAT MAKES CURRENT FLOW IN A CIRCUIT? An electric current flows in a loop,powering bulbs or other electric COMPONENTS… A circuit is made up of various components linked together by wires. The current is driven around the circuit by a power source, such as a BATTERY.
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There is a potential difference (voltage) between two points and a path for electrons to travel from an area of low potential (negative) to an area of high potential (positive). Note the direction of "current flow" is opposite the direction of electron flow. In other words current flows from positive to negative. In a circuit involving only a resistor, the current flowing in the circuit is given by I=V/R where I = current, V= voltage, and R=resistance.