-- a microphone
-- the part of a telephone near your mouth
A microphone is a device that converts sound energy into electrical energy. Sound waves cause a diaphragm in the microphone to vibrate, which in turn generates an electrical signal that represents the sound.
That is called a rheostat or a dimmer.
What do you when you add r to heat and you get a word meaning wire which connects a piece of electrical apparatus to the ground
A spring would be the apparatus used to change elastic potential energy into kinetic energy. When a compressed or stretched spring is released, it converts the stored potential energy into kinetic energy as it returns to its equilibrium position.
A microphone converts sound energy into electrical energy. It does this by capturing sound waves emitted from a source cause movements in a thin metallic diaphragm and an associated coil of wire. A magnetic field is developed around the coil with the help of a magnet and as the coil moves within this field under the effect of the sound waves, it produces an electric current. The amount of current produced depends on the velocity of that motion, so it is velocity sensitive.
A turbine generator system is typically used to convert potential energy (such as water or wind) into kinetic energy which then drives the turbine to generate electricity. This process involves converting the mechanical energy into electrical energy using the generator.
pole-mounted electrical transformer
This was a question in a piece a homework i had and the answer in cell. Hope that helped!
electrical receptacle
Energy in all forms (electrical, mechanical, chemical, thermal) can change from different forms. For example, consider a piece of coal in a power plant. The burning piece of coal is transforms from chemical to thermal energy. If the thermal energy (heat) boils water, it's transform to an another form of chemical energy. Then, if it turns a turbine, it's changed to mechanical energy. Then, finally, the turbine turns a generator and makes electricity (electrical energy).
A voltmeter is used to measure electrical push, which is electromotive force or voltage. It typically has two probes that are connected to the circuit being tested to determine the voltage between two points.
The parts of this apparatus include the bladder, aneroid gauge, tubing, and ear piece.