2 Draw a labelled diagram of an electric bell and explain how current flows through it.
when the switch is closed, current flow through the winding of the Electromagnet, causing the soft iron bar to get attracted to it. When the soft iron bar is pulled towards the Electromagnet , the hammer attract to it hits the gong of the bell and produces sound, thus causing it to ring .As the soft iron bar moves away from the contacts screw, the circuit broken . The electromagnet loses its magnetism and the soft iron is pulled back to the contact. By the spring accept this complete the circuit in the cycle be repeated is the hammer will vibrate against the gong and produce a continuous string as long as the switch is closed
Answers
Current flow basically means the flow of electric charges with respect to time. In an electric circuit, when the electric charge is flowing in one direction, the current will flow in the opposite direction. ... From Ohm's law, the current can be defined as the voltage through the circuit per unit resistance.
An electric bell contains an electromagnet, consisting of coils of insulated wire wound round iron rods. When an electric current flows through the coils, the rods become magnetic and attract a piece of iron attached to a clapper. The clapper hits the bell and makes it ring.
I tried full explain
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as Mark plzzz
Answer:
The switch is pressed and current flows through the circuit.
The electromagnet is powered and generates a magnetic field that attracts the iron strip towards it.
The striker strikes the gong (bell).
When the striking arm strikes the gong, the contact is broken and current stops flowing through the circuit.
This causes the electromagnet to lose its magnetic field.
The connected spring arm returns the striker to its original rest position.
The contact is restored and current flows through the circuit (provided the main switch is still pressed).
The process is repeated from the beginning.
