3. How does electricity flow in an electric circuit ? What is meant by an open circuit?
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Explanation:
Electricity flows when electrons flow. an open circuit is when the switch is off. the circuit is open because there is no flow of electric current
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The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction. An open circuit implies that the two terminals are points that are externally disconnected, which is equivalent to a resistance R=∞ . This means that zero current can flow between the two terminals, regardless of any voltage difference.
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