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produce a force that pushes and pulls
By rubbing amber with fur static electric charges are produced
Other things that vibrate to produce sounds include washing machines, toys and pagers
Moving electric charges create electromagnetic fields.
It Must have separated partial charges which move in opposite directions under the influence of the electric field of the light AND vibrate at the same frequency as the IR radiation.
Like poles repel; opposite poles attract. They are similar to electric charges, for they can both attract and repel without touching. ... Electric charges produce electrical forces and regions called magnetic poles produce magnetic forces.
produce a force that pushes and pulls
By rubbing amber with fur static electric charges are produced
Gauss's law: Electric charges produce an electric field. Gauss's law for magnetism: There are no magnetic monopoles. Faraday's law: Time-varying magnetic fields produce an electric field. Ampère's law: Steady currents and time-varying electric fields produce a magnetic field.
The flow of electric charges is current.
Other things that vibrate to produce sounds include washing machines, toys and pagers
It has to vibrate.
Moving electric charges create electromagnetic fields.
A conventional loudspeaker does not produce ultrasonics because its diaphragm does not vibrate at high frequencies. A piezo-electric loudspeaker can be designed to emit sound at many tens or hundreds of kHz; even a few MHz.
flow of electricity through a conductor are electric charges
Like electric charges - charges of the same sign - repel each other.
It Must have separated partial charges which move in opposite directions under the influence of the electric field of the light AND vibrate at the same frequency as the IR radiation.