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Is a group or amount of people or objects that are all different.

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A relay is a switch that is controlled by another electrical circuit. Many relays use an electromagnet.

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Is a device used to allow or prevent the passage of current.

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To control equipment is to make it work or move in the way that you want it to.

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Passage is movement through, past, or over a location.

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A contact is a device used to conduct current.

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A pole is a set of contacts.

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If something is normally open, it means that the contacts do not touch when the relay or switch is in the “off” position. Electricity cannot pass between the contacts.

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If something is unconnected, it is not linked to a system.

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If something is normally closed, it means that the contacts are touching, when the relay or switch is in the “off” position. Electricity can pass between the contacts.

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A throw is a position that a switch can be in.

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To shut down is to stop working.

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Resistors have a lot of variety.
Variety in electronic is subjective.
Computers has a lot of variety nowdays.

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Switches are useful on a house circuit system.
You can put a switch on your lighthing circuit.
The switch is present in so many comercial things.

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You can control the tv in a remote way,
We need to control the usage of our servers.
We need new personal to control the school.

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circuits has a passage through the pcb.
Every circuit has a passage.
The passage in a pcb is the lines under the motherboard.

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Relay is similar to a switch.
Relay has differents uses compared to a normal switch.
Relay doesnt need direct contact like switches.

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You can make contact between metal things.
Contact is possible to do in so many ways.
A contact with a circuit to other is made with metal or copper cables.

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You need to recognize the different poles.
Poles can be different in all types of engines.
Negative and positive poles are important to know how they work.

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A normally open circuit can be exemplified with a switch.
A normally open circuits cuts the voltage.
Normally open circuits are not functional.

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Unconnected circuits are like normally open.
Unconnected cables are not useful.
Unconnected circuits doesnt do anything.

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Normally closed circuits has voltage on them.
Normally closed circuits are like normal circuits without switches.
Normally closed circuits are really simple.

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You can throw a switch there.
Throw spaces are reservated for open circuits.

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A circuit can be shutdown without recieving voltage.
You can shutdown a circuit with a button too.
Shutdown a circuit in a forced way could damage it.