Q. 64.0( 6 Votes )

Describe the construction and working of an electric bell with the help of a diagram.

Answer :

Important parts of an electric bell are:


1. Electromagnet


2. Armature


3. Spring


4. Armature rod


5. Hammer


6. Gong


Construction:


An electric source like a battery is used as power for the electromagnetic circuit used in an electric bell. A switch is used as a circuit breaker which when pressed creates the sound of the bell. When the circuit is closed current flow into the armature wound around the soft iron core and thus produces magnetism in it. The free end of the armature wire has a small hammer which strikes the bell due to the electromagnetic effect produced in it due to the flow of current. As the circuit breaks flow of current stops, electromagnetic effect vanishes and hence the bell stops ringing.



Working on an Electric Bell:


The working of an electric bell is described step by step as follows:


● The current is started in the circuit by pressing the switch.


● It powers the electromagnet and thus a magnetic field is created in it.


● The magnetic field attracts the iron strip and the hammer hits the bell.


● When the striker hits the bell the circuit is broken and the core loses magnetism.


● When the magnetism is lost the spring connected makes the hammer return to its original position.


● The contact is again restored of the switch is pressed again.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Rapid Fire Quiz on ElectricityQuiz | Rapid Fire Quiz on ElectricityQuiz | Rapid Fire Quiz on Electricity50 mins
Quiz | Effects of Electric CurrentQuiz | Effects of Electric CurrentQuiz | Effects of Electric Current23 mins
Lets Learn Chemical EffectsLets Learn Chemical EffectsLets Learn Chemical Effects30 mins
Goprep Genius Quiz on Direct and Inverse proportionsGoprep Genius Quiz on Direct and Inverse proportionsGoprep Genius Quiz on Direct and Inverse proportions32 mins
Genius Quiz | How, When and WhereGenius Quiz | How, When and WhereGenius Quiz | How, When and Where38 mins
QUIZ | Exponents and PowerQUIZ | Exponents and PowerQUIZ | Exponents and PowerFREE Class
Ratio and PercentageRatio and PercentageRatio and Percentage34 mins
Champ Quiz | Force, Pressure & SoundChamp Quiz | Force, Pressure & SoundChamp Quiz | Force, Pressure & Sound29 mins
Fun and Games with ConjunctionsFun and Games with ConjunctionsFun and Games with Conjunctions46 mins
Cell - Number, Size and ShapeCell - Number, Size and ShapeCell - Number, Size and Shape40 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses