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Select the best answer for the question.
7. What does the term "single-pole" mean in a schematic?
A. The switch has only two positions: on or off.
B. The switch is always on.
C. The switch doesn't use a contact.
D. The switch has only one contact inside the switch.
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Answer:

the correct answer is A

Explanation:

In an electrical circuit the switch can be of two types: unipolar and bipolar.

The bipolar switch refers to a three-contact switch that allows the polarity in the circuit to be reversed.

The unipolar switch has only two contacts so the polarity of the circuit is in one direction and the switch serves to interrupt the passage of electrons in the circuit.

Consequently the correct answer is A

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