Definitions. Electricity Electric Current Current Direction The current direction is from positive to negative but the electron direction is from negative.

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Presentation transcript:

Definitions

Electricity

Electric Current

Current Direction The current direction is from positive to negative but the electron direction is from negative to positive

Potential Difference

Electromotive Force The electromotive force is the total work generated by the source to transfer one coulomb through the whole circuit (inside and outside the source) (emf). emf like the potential difference in all things Unit is volt and the voltmeter is the measuring device

Resistance

Resistivity

Conductivity

Resistance contact

Ohm's law

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