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What is the simple device that opens and closes an electrical unit called?
Wiki User
∙ 9y ago
A device that opens and closes a circuit is called a switch.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoA transistor is one kind of device that can amplify a signal or open and close a circuit.
Wiki User
∙ 13y agoA device that either breaks or completes a circuit called a switch.
Wiki User
∙ 12y agoA switch.
Wiki User
∙ 9y agoA switch
Anonymous
Ampere
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