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electricity (Components (Receivers, Control elements, Generators,…
electricity
Electric circuits
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Insulators
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Wood, glass, plastic and air are insultators
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Electric current
Electric current is the charge, or number of electrons that flows through a conductor per second
Electrical resistance
the resistance of the component is the quotient of the
potentialdifference across it over the current flowing through it The equationis called ohm's Law:
Electric quantities
Voltage or tension is the energy that a battery or generator can provide for each electron. It is measured in volts (V)
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Types of current
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Direct current
Between the terminals of a battery there is a constant voltage that doesn't vary with time.We call the direct current.
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