DC Fundamentals Review
Name the electrical quantities represented by l E and R. State Ohms Law in words and as a formula. Calculate the current voltage or resistance of a simple circuit when any two of the quantities are known. Calculate the total resistance of a series circuit when its individual series resistances are known. Calculate the resistance of a single series component when the total circuit resistance and the remaining series resistances are known. State Kirchhoffs Voltage Law. Calculate the voltage drops across each component in a series circuit. Calculate the current through a series circuit when a single resistance and its voltage drop are known. State Kirchhoffs Current Law. Calculate the branch currents in a parallel circuit when the source voltage and the individual branch resistances are known. Calculate the total current through a parallel circuit when the individual branch currents are known. Calculate the total resistance of a parallel circuit when the individual branch resistances are known. Calculate the total resistance of a series-parallel circuit. Calculate the voltage drops in a series-parallel circuit. Calculate the branch currents in a series-parallel circuit. Calculate the voltage drop across a series component by the proportional voltage drop method. Calculate the branch current through a parallel branch by the proportional branch current method. Calculate the total resistance of any two parallel branches by the product over-sum method. Calculate the resistance of a circuit with any number of equal parallel resistances by using the R/n formula. Calculate the branch currents of a circuit with any number of equal parallel resistances by using the It/n formula. Given the source voltage and resistance of a circuit calculate the additional series resistance required to limit current through the circuit to a specified value. Given the schematic of an incandescent lighting circuit calculate its total current and select the appropriate protective fuses. Describe the effects of opens and shorts in series and parallel circuits.
