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Old telephones for the hook switch. c. 1960-1985
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∙ 13y ago
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Does a key or reed switch have a symbol which could be put in a circuit diagram?
yes
A machine that uses only one movement is a?
A simple machine.
What kind of simple machine is a light switch?
The simple machine in a light switch is a "lever".
What is a pneumatic machine?
a pneumatic machine is a machine that uses gas usually air, to transmit a force and do workexamples: a pump for a bicycle, and a drill
What are the uses of winnowing machine?
it is used for sepereting claff
What is a reed switch used for?
A reed switch uses two magnetized strips of metal to make or break a contact when a magnet is brought close to them. The door magnet near a reed switch on the door casing will cause the reed switch to close and moving the magnet away will cause the reed switch to open.
What is the reed a clarinet uses called?
A clarinet reed.
What sort of reed does a bassoon use?
It uses a double reed
Is an oboe a reed instrument?
yes, the oboe uses a reed to produce sound.
Can a reed switch affect the brightness of a bulb?
It can, but it should not. If it does, then the reed-switch is defective ... its contacts have most likely deteriorated on account of excessive current at some time.
How does metal corrosion affect a reed switch?
corect moria
Why does more current flow through copper wire than a reed switch?
Ideally the reed switch should be able pass as much current as the wire supplying it. A voltage drop across the switch would indicate resistance and suggest that the maximum rated current has been exceeded. Reed switches are delicate and should only switch small currents. They are used where actuation by a magnet is required, without mechanical interference. To switch larger currents a relay should be used, fed from the reed.
How do reed switches work?
Reed switches work on a basic principle whereby the reed switch is a hermetically sealed glass tube containing two ferromagnetic reeds that will actuate when in the presence of a magnetic field. The magnetic field may be generated from a ferrous metal such as iron, a permanent magnet such as rare earth types and/or an electromagnetic coil as used in a reed relay.Reed switches have various electrical properties such as their sensitivity range which is generally specified in ampere turns (AT). The AT or sensitivity of the reed switch refers to the open and close points of the switch.When a reed switch is used in conjunction with a permanent magnet, it referred to as a reed sensor. Typically the reed switch is mounted to a fixed object and the magnet to the moving object. The strength of the magnetic field as well as the position and movement of the magnet relative to the switch will determine how many open and closure points will take place.Example: Parallel movement of the magnet to the switch can produce either one or three switch closures depending on its distance from the switch.
What is a power switch on a sewing machine?
The power switch is usually located on the side of the machine, and turns it off and on.
What type of reed does a french horn have?
French Horn does not use a reed - it uses a funnel-shaped metal mouthiece.
What is a palindrome for an electronic device a weatherman uses?
radar
Do percussion instruments have a reed?
No they do not. Reeds are used to play Wind Instruments/ Aerophones. An example of an instruments that uses a Reed is a Saxophone.
