Pivot Point Chapter 4 Electricity

Electricity

A form of energy that produces light, heat, magnetic and chemical changes

Electric Current

The movement of electricity along a path called a conductor

Load

The technical name for any electrically powered applicance

Conductor

A material that allows electricity to flow through it easily

Insulator

A material that does not allow the flow of electric current

Amp

A unit of electric strength

Volt

A unit of electric pressure

Ohm

A unity of electric resistance

Watt

A measure of how much electrical energy is being used

Electrotherapy

The application of electrical currents during treatments to the skin

Electrons

Tiny, negatively charged particles

Examples of good conductors

Silver and copper, carbon, graphite and water containing ions

Examples of good insulators

Silk, plastic, rubber, wood, glass, paper, air, alcohol, oil and pure distilled water

Hertz Rating

Provides the number of cycles, per second, a generator alternates the current from the source.

DC or Direct current

Electrons move at an even rate and flow in only one direction

AC or Alternating current

Electrons flow first in one direction and then in the other

Circuit breaker

A reusable device that breaks the flow of current when an overload occurs

Grounding wire

Is designed to protect you when operating certain appliances

Local shock

Electricity passes through a small part of the body, causing burns and muscle contractions

General shock

Electricity passes through the nervous system

Three kinds of effect of electric current

Heating effects, mechanical or magnetic effects and electrochemical effects

Galvanic current

A direct current (DC) of low voltage and high amperage

Faradic Current

An alternating current (AC) interrupted to produce a mechanical, non-chemical reaction.

Sinusoidal current

An alternating current (AC) with a mechanical effect

Tesla current

Known as the "violet-ray" is an alternating current (AC)

Three methods for using the Tesla Current

Direct application, indirect application and general electrification

Light therapy

The production of beneficial effects on the body through treatments using light rays or waves

Visible light

The portion of the electromagnetic spectrum humans can see