Electric Bell Mechanism and Components

The video tutorial explains the components and operation of an electric bell. It consists of a power source, switch, interrupter, soft iron strip with a hammer, electromagnet, and metal gong. When the switch is turned on, the circuit completes, allowing electricity to flow through the electromagnet, attracting the soft iron strip and causing the hammer to strike the gong. This action breaks the circuit, stopping the current and allowing the strip to return to its initial position, repeating the cycle as long as the switch is on.

Which of the following is NOT a component of an electric bell?

• Electromagnet

• Battery

• Switch

• Power source

What happens when the switch of the electric bell is turned on?

• The gong stops ringing

• The circuit is broken

• The hammer stops moving

• Electricity flows through the electromagnet

What causes the hammer to strike the gong in an electric bell?

• The power source

• The interrupter

• The switch being turned off

• The electromagnet attracting the soft iron strip

What happens to the soft iron strip when it is attracted to the electromagnet?

• It touches the interrupter

• It stops the hammer

• It breaks the circuit

• It completes the circuit

What ensures the continuous operation of the electric bell as long as the switch is on?

• The power source

• The spring-loaded strip

• The hammer

• The metal gong