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Electro-Static Revision Notes * Electric Current is a flow of electric charges, consisting of electrons. Two types of charges - positive and negative. No charge matter is neutral. Forces between charges are called electrostatic forces. - Like charges repel, unlike attract. * Rule - charge must always be conserved, it cannot be created or destroyed. * Current measured with an ammeter, voltage measured with a voltmeter. * Current (I) = Charge (Q) / Time (t) * Coulomb (C) is amount of charge passing a point when a current of an ampere flows for a second. * Electricity is conducted only through material soluble in water when in water, aqueous solutions and in a molten state. * Material allowing flow of charge is a conductor otherwise an insulator. * Instrument used to show the existence of a charged object is called a gold leaf electroscope, which moves in a certain direction depending on the charge on the object once...

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