EEUTI30

• Electron Theory - Current is produce when a large number of electrons flow from one atom to another in a single general direction.
• Electricity - The shifting of valence electrons from one atom to another.
• Electron flow - from negative to positive
• Current flow - from positive to negative
• Voltage - Electromotive force that pushes the current
• Current - rate of flow of electrons
• Resistance - Hindrance to the flow of electrons
• Ohm's Law - At constant temperature, the current is directly proportional to the voltage and inversely proportional to the resistance.
• Source - device that delivers the energy into the system being consumed by the load.
• Load - electrical component that consumes electric power and converts electrical energy to other forms of energy.
• Insulator - materials that do not allow the flow of electrons from atom to atom.
• Conductor - materials that allow the flow of electrons from atom to atom.
• Direct current - the electric charge or the current flows in only one direction, voltage is constant.
• Alternating current - the direction of the flow of electron switches back and forth at regular intervals.
• Resistivity - takes into account the nature of the material
• DC Source - Produced due to chemical energy stored in batteries or from solar energy converted by solar panels
• AC Source - Produced through the process of electromagnetic induction.
• A machine that converts mechanical energy to electrical energy is called generator.​
• Wires or cables - These are used to transmit electrical energy from its source to the load such as devices, equipment and appliances​