Physics Radio Waves ect

Capacitor

a device that accumulates electric charge

Electromagnetic oscillations

Periodic or almost periodic changes in electrical charge

Electromagnetic waves

the propogation of an electromagnetic field in space

Amplitude modulation

A phenomenom when the amplitude of higher frequency oscillations is changed by the frequency of sound oscillations

Detection

Seperation of low frequency oscillations from high frequency modulat

Radio location

Detection of objects and mesurement of distance to them using radio waves

Non-damped oscillation generator

A device that constantly replenishes the energy of the oscillation circuit, which is lost due to the resistance of the conductors

Electrical resonance

A sudden increase in the amplitude of a current when the frequency of the external alternating voltage consides with the natural frequency of the oscillation circuit