Energy is required to remove two electrons from Ca to form

Section 1­ Fund. Facts of Circuit Theory  Definitions o Electricity­ characteristic of the universe that may be used to transmit energy and to transmit information o Charge­ electric charge is a characteristic of electrons and protons  Protons­ positive charge  Electrons­ negative charge  Neutrons­ no charge o Voltage­a measure of the work required to more 1 coulomb of charge btwn 2 points (nodes) in a network o Current­ measure of time rate of flow of electrical charge through a circuit element  Current is through a circuit o Power­ the time rate at which energy is dissipated in a circuit element o Resistance­ the voltage across a resistance is directly proportionsal to the current through the resistance; the constant of proportionality is called resistance and is measure in ohms  Positive current enters the negative terminal of the resistance o Ohms Law­ the relationship btwn the current through a resistance and the voltage across a resistance o Resistor­ physical device with voltage, current and power and frequency limitations; has inductive, capacitive and thermal effects o Inductance­ the voltage across an inductace is proportional to the time rate of change of the current through it; this proportionality is inductance, measured in henries o Capacitance­ current through is pr