The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.
Yes, it does not exhibit incandescence if it is working properly.
Heat generated by electrical resistance. Thermal mass of a metal plate.
An electo-magnet is used in an electric bell.
The electric bell and the electric current stops over and over again because of the fluctuations in voltages.
In electric bell, electrical energy is converted int sound energy.
piezo electric principle
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.
electromagnet solenoid
photo electric transducer
Yes, it does not exhibit incandescence if it is working properly.
Heat generated by electrical resistance. Thermal mass of a metal plate.
The electric motor does not work on the principle of the amplifier and the digital signals.
Check the related links for a good source.
What is the working principle of venturimeter?
An electo-magnet is used in an electric bell.
A working principle is a regulation or rule that is used so that work can be done. This is a general phrase that can be used in any circumstance from the working principle of a motor, to the working principle of a solar cells.
It is the same piezo electric effect, the vibrations caused by the sound waves are converted into corresponding electrical signals.