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Use the astable to switch a power transistor and connect the buzzer as the transistor load.

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Q: I am trying to make a seat belt safety light How do you add in a buzzer to an astable circuit which already has and LED?
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Why is a short circuit considered a safety hazard?

A spark from a short circuit can cause a fire .


What safety device is fitted to ensure a circuit breaker can not be racked out when closed?

A remote racking device is the name of a safety device that is fitted to ensure a circuit breaker cannot be racked out when closed.


How are safety switches wired to the holding coil?

In control circuit wiring the safety switch is in series with the holding coil.


Why is a resistor needed to discharge or charge a capacitor in an electric circuit?

A resistor may be used in series charging for current limiting, filtering, or as a signal isolater. Resistors across caps are to discharge them for your safety or equalize voltages across the caps in series filtering circuit.


What does overloading an electrical circuit mean?

Current is supplied through metal, usually copper wires. Wiring within a typical house is divided into several circuits. Thus a group of lights in a room or group of rooms may be on a circuit. Also a group of power sockets (into which you can plug in toasters, radios, TV's etc.) may form a circuit. A clothes washer may be on a separate circuit. The clothes dryer may be on a separate circuit. The central Air Conditioning unit cum heating unit may be on a separate circuit. The electric stove and oven may be on a separate circuit and so on. The reason for segmenting the circuits is safety, cost, and Electrical Codes established by the government. Remember also that each of the circuits has its own circuit breaker. The current carrying capacity of a wire depends on its diameter. If the diameter is large it can carry more current. However bigger the diameter, more expensive is the wire. The architect and builder must first estimate the total amperes that will nominally be used by the house and ask the power company to provide say 100 Amp service or 200 Amp service etc. The power company will then provide wires and circuitry to the power box just outside the house capable of supporting that required amperes. The architect and the builder will then design circuits within the house to support the different appliances. Low consumption lights and fans may be on one circuit (smaller diameter wires) with its own circuit breaker for safety. High current consuming appliances will usually be on separate circuits (bigger diameter wires) with their own circuit breakers, again for safety. Now if you plug in an electric stove cum oven into a circuit designed and designated for lights, you will overload the circuit and hopefully the circuit breaker on the lights circuit will pop and cut off the current. If this safety feature was not there, then the light circuit which was designed to carry less current (small diameter wire) will now have to carry a much larger current to run the electric stove cum oven. The current carried will be too great for the small diameter wire and hence the circuit gets overloaded. If the circuit breaker was not there, the small diameter wire will be heated to a very high temperature and a wire accident will be imminent. HENCE IN A NUTSHELL OVERLOADING AN ELECTRIC CIRCUIT MEANS PASSING MORE CURRENT THAN THE CIRCUIT WAS DESIGNED FOR. Recognize that the voltage used also has an effect on the load characteristics of a circuit/appliance. Thus appliances designed for 110V use will pose problems when used with 220V including fire and electrocution. Circuit overloading occurs in audio circuits as well leading to frequency and/or amplitude distortion.

Related questions

How do you turn off beeping sound when turning on ignition on 2007 Toyota Camry?

the beeping is a factory safety feature and cannot be simply turned off. short of removing the buzzer itself, this is not recommended as it is unknown if there are any fail safes running through this circuit


Why the fuse wire necessary in a circuit?

It is a safety device. It is not an essential part of the circuit.


What will happen to a safety device if there is short circiut?

If your reference to a safety device is a fuse, then if there is a short circuit, the circuit will be de energized by the opening of the fuse.


A safety device that uses an electromagnet to shut off the circuit is called a?

A safety device that uses an electromagnet to shut off the circuit is called a contactor.


What is the function of a combination pliers in an electric circuit?

for made of electric circuit safety device,


Why is a short circuit considered a safety hazard?

A spark from a short circuit can cause a fire .


What uses series circuit?

the connection in a series circuit would be a most it can be given in safety places


What device is used as a form of safety device in an electrical circuit?

A fuse or circuit breaker will fit this description.


Difference between two phase and three phase welding machine?

Three phase uses a safety circuit away from the machine, two phases uses you as the safety circuit


Why there is a hole in the AC power plug pin?

It's for safety. When working on a circuit, you thread a safety tag through the hole to mark the circuit so it doesn't accidentally get plugged in.


Why shouldn't you have closed circuit cameras in the classrooms?

Because if safety! (:


What are the safety features available in a breaker?

To detect and open the circuit if a thermal overload is present and to detect and open the circuit if a short circuit caused by a magnetic increase of flux in the circuit.