an electric bell has an electromagnet emitter near the iron strip .the iron strip has a connection screw which helps to complete the circuit. the electromagnet helps to pull the iron strip from the connection screw. this breakes the circuit and the electromagnet no longer will have the power to pull the iron strip, so the iron strip moves to the connection screw and makes the circuit complete which makes the iron strip pull towards the gong this cycle continuous till the switch is on
How an Electric Bell works:
The bell system is a circuit consisting of an electromagnet, a switch, set to off, which the ringer presses, a power source, a gong, a hammer (which forms part of a second switch), and electrical contact point.
Once the ringer presses their switch the citcuit is completed, and the electromagnet becomes active and attracts the hammer.
The hammer moves toward the magnet, striking the gong,
but as it does so the circuit is broken (the hammer is part of the second switch completing the circuit, remember!),
and the hammer falls back.
Once it has fallen back into place, the circuit is completed and it moves forward,
striking the gong and breaking the circuit again,
which cycle is repeated until the ringer releases their switch.
1. Construction-:
2. Working
Construction:
An electric bell consists of an electromagnet. One end of the winding is connected to T1 and the other to a spring which is mounted on a soft iron strip called the armature. One end of armature winding is connected to terminal T1 and the other to a spring, which is mounted on a soft iron strip. A rod is attached to the armature and the free end of the rod carries a small hammer, which strikes a bell. A very light spring is attached to a screw, which is joined to terminal T2.
Working:
The electric circuit is completed through a battery and push switch button connected to the terminal T1 and T2. When the push button is pressed the electric circuit is completed and the armature is attracted towards the electromagnet as a result, the small spring gets detached from the screw due to which the electric circuit is broken and the electromagnet is demagnetized. Hence, the attraction disappears and the armature is brought back by the spring to its original position. Contact of the spring with the screw is now remade, which completes the electric circuit. The action is repeated over and over again consequently. The armature vibrates and hammer attached to it strikes the gong and the bell rings and sound is produced.
1. The bell push button switch is held closed.
2. The iron bell-striker is attracted to the electromagnet and strikes the bell.
3. As the striker moves towards the bell, a contact fixed to the striker arm loses contact with a fixed contact fixed to the baseboard, so that electricity stops flowing through the coil, which loses its magnetism.
4. A spring returns the striker arm to its original position, which re-makes the contact so that electricity flows through the electromagnet again.
Back to number 1 and the cycle repeats itself.
The bell will continue to ring as long as the bell push button switch is held closed.
Another answer
It's a simple electro-magnetic mechanism: in a bell, there is a circuit for an electro-magnet (which is triggered by the bell push button). This electro magnet is covered by a metal "bowl" which forms the bell which makes the sound. Also, there is a metal rod, attached to a stationary end. So, when someone pushes a button, the circuit is closed => electricity goes through the Electro Magnet => the metal rod is attracted to the magnet and hits the bowl, creating a sound.
describe the construction ,function and use of either a relay ,solenoid , an electric motor or transformer
To construct an electric bell we need,1.Electromagnet, 2.Armature, 3.Spring, 4.Armature rod, 5.Hammer 6. Gong. Connect one end of armature winding to terminal, and use a battery switch.
Until drawings can be displayed in this or the question cannot be answered on the site. Explore your local library.
Could you build a working electric circuit using glass rods as the conductors? Why or why not?
One example of electromagnetic source is a microwave. Forms of electromagnetic energy are gamma rays, x rays, ultraviolet radiation, and visible light.
Put a battery in a holder then press a button
Thomas Edison invented the Parallel circuit while working on the electric lightbulb
Yes, it does not exhibit incandescence if it is working properly.
initially when current pass through the filament
Check the related links for a good source.
An electo-magnet is used in an electric bell.
http://chestofbooks.com/home-improvement/Household-Companion/Practical-Mechanics/The-Working-of-the-Bell.html go to this site the whole working plus the diagram is available.
Electric Construction Co. Building was created in 1908.
it is like a door bell
The electric bell and the electric current stops over and over again because of the fluctuations in voltages.
The electric bell and the electric current stops over and over again because of the fluctuations in voltages.
explain cro construction and working
A mechanical bell that uses electromagnets is called an electric bell. The parts of the electric bell are spring, hammer, gong, armature, armature rod, and electromagnet. The electric bell functions are different on account of there being different types of electric bells and different means of using them.
Northern Electric was wholly owned by Bell Canada until 1973