summary Of Ohm’s Law

summary

An electric circuit consists of a voltage source, a load, and a conductor.

● The current path in an electric circuit can be series, parallel, or series-parallel.

● A series circuit offers only one path for current to flow.

● A parallel circuit offers several paths for the flow of current.

● A series-parallel circuit provides a combination of series and parallel paths for the flow

of current.

● Current flows from the negative side of the voltage source through the load to the positive side of the voltage source.

● Changing either the voltage or the resistance can vary current flow in an electric circuit.

● Ohm’s law gives the relationship of current, voltage, and resistance.

● Ohm’s law states that the current in an electric circuit is directly proportional to the voltage applied and inversely proportional to the resistance in the circuit.

● Ohm’s law applies to all series, parallel, and series- parallel circuits.

● To determine unknown quantities in a circuit:

● Draw a schematic of the circuit and label all quantities.

● Solve for equivalent circuits and redraw the circuit.

● Solve for all unknown quantities.

Kirchhoff ’s current law: The algebraic sum of all the currents entering and leaving a junction is equal to 0; it may be restated as the total current flowing into a junction is equal to the sum of the current flowing out of that junction.

● Kirchhoff ’s voltage law: The algebraic sum of all the voltages around a closed circuit equals 0; it may be restated as follows: The sum of all the voltage drops in a closed circuit equals the voltage source.

Incoming search terms:

Leave a comment

Your email address will not be published. Required fields are marked *