7. Current of Electricity Flashcards
What is an Electric Current
It is the rate of flow of charge
What is Potential Difference
It is the energy per unit charge transferred from eletrical energy to other forms of energy when a charge passes from one point to the other
What is the Electromotive Force
It is th e energy transferred per unit charge from one form of energy to other forms of energy when a charge is moved around a complete circuit
What is Resistance
It is the ratio of the potential difference across it to the current flowing through it
What is Ohm’s Law
It states that for a conductor at constant temperature, the current in the conductor is proportial to the potential difference across it
What is Resistivity
It is the property of a prperty of the material and is numerically the resistance of a sample of unit legth and unit cross-section area, at a certain temperature
