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Is the circle or straight line symbol on or off for an electrical switch?
Wiki User
∙ 14y ago
Simply put, the straight line is the on, and the circle is the off.
These symbols represent an electrical circuit. The Straight line represents a closed circuit, which means the switch is on and the electric current can travel through it, and the circle means and open circuit, where the current cannot travel because the circuit is open.
A quick trick to remember: "O, Open, Off".
Wiki User
∙ 14y ago
Anonymous
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