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A thermistor would be a part of the circuit made out of either silcon or geranium.
These are semi-conducting material and have limited electrons at room temp so it has a lot of resistance not allowing much electical current to the 'buzzy thing'. but when they are heated ( by smoke) more electrons become availble and its resistance drops a lot which will increase the eletrical energy for the 'buzz' in the fire alarm
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What is the use of thermistor in fire alarm?
They are the central component in heat detectors which detect heat.
Could you change a fire alarm to a frost alarm?
A normal fire alarm needs the brass on top of the iron, however, in the frost alarm you will need to swap both of these metals, by putting the iron on top of the brass so when the temperature is too low, the circuit is open.
Why to use pnp transistor in fire alarm circuit?
You can use a PNP or an NPN transistor in a fire alarm circuit. Both will work. It all depends on how you want to energize the alarm, and with what polarity of signal.
Which gadgets use the bimetallic strip?
fire alarm
Which alarm can protect people from fire?
Fire Alarm
What is another phrase for fire alarm sounded?
The fire alarm rang
is siemens a good fire alarm ?
Siemens are very reliable and trusthworthy. They are very popular in the home and many use this fire alarm ssystem. They are good for every demand in your home.
What does a fire alarm technician do?
The fire alarm technician is in charge of the installation of fire alarm systems. Fire alarm systems include addressable or conventional alarm control panels, smoke detectors, heat detectors, manual button alarms, sirens and strobes, signs, etc. A professional fire alarm system is large with professional addressable bus lines alarm systems, addressable detectors for building fire security, or other special field fire security. So, the fire alarm technician should be knowledgeable in alarm systems working principles and installation.
When was The Fire Alarm created?
The Fire Alarm was created on 1936-03-09.
Design OF A fire fighting system for electrical control building?
we have to distinguish between firefighting and fire alarm system. fire fighting is mechanical work (either sprinkler system or Foam or CO2 or FM200) and there is fire alarm or detection system this is an electrical thing that includes ( detectors an fire alarm system) for electrical control building we use FM200.
Who called the fire alarm about montag?
Mildred initially called the fire alarm about Montag.
What is the use of capacitors in fire alarm circuit?
Fire alarm system may be having some electronic devices and cards, in which some capacitors are used. Capacitors are part of any electronic cards.
