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ELECTRICITY & MAGNETISM

Across
an elementary particle with negative charge
an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
a physical phenomenon that can produce light, heat and power
states that the current in a circuit equals the voltage difference divided by the resistance.
the lines of force surrounding a permanent magnet or a moving charged particle
a stable particle with positive charge
electric current that reverses its direction of flow in a regular pattern.
process in which electric current is produced in a wire loop by a changing magnetic field.
material, such as copper wire, in which electrons can move easily.
either of two points where the lines of force of the Earth's magnetic field are vertical
a device that attracts iron and produces lines of force
using or providing the flow of charge through a conductor
Down
radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
SI unit for electrical potential difference
the quantity of unbalanced electricity in a body (either positive or negative) and construed as an excess or deficiency of electrons
the state of having a deficiency of electrons
the accumulation of excess electric charge on an object.
of or relating to or caused by attraction for iron
electric current that flows in only one direction.
tendency for a material to oppose electron flow and change electrical energy into thermal energy and light; measured in ohms (O). Caused by internal friction
device that uses electromagnetic induction to increase or decrease the voltage of an alternating current.
the state of having a surplus of electrons
a quantum of electromagnetic radiation
a stable particle with positive charge
SI unit for resistance