OHM’S LAW Resistance

O HM ’ S L AW O HM ’ S L AW  Ohm’s Law: Is the relationship between voltage, current and resistance.

S ERIES C IRCUITS  A series circuit has only one path for the charges to follow.

C URRENT IN S ERIES C IRCUITS  In a series circuit, there is only one path for the current to follow.  Therefore, the current in all parts of the circuit will be the same.

R ESISTANCE IN S ERIES C IRCUITS  Putting two resistors in series with one another further restricts the current flow.

P OTENTIAL D IFFERENCE IN S ERIES C IRCUITS

 in any closed circuit loop, the sum of the potential difference drops through all the components must be zero.

P OTENTIAL D IFFERENCE IN S ERIES C IRCUITS

S ERIES C IRCUITS Determine the current, total resistance, and voltage drops through all the resistors in the circuit

S ERIES C IRCUITS

P ARALLEL C IRCUITS  A parallel circuit is a closed circuit in which the current has more than one path, or branch, to follow

C URRENT IN P ARALLEL C IRCUITS

 Kirchhoff’s current law, which states that the current entering junction must be equal to the current leaving the junction.

R ESISTANCE IN P ARALLEL C IRCUITS

P OTENTIAL D IFFERENCE IN P ARALLEL C IRCUITS  Kirchhoff’s voltage law : the sum of the potential difference drops through all the components must be zero.

P OTENTIAL D IFFERENCE IN P ARALLEL C IRCUITS

P ARALLEL C IRCUITS

M IXED C IRCUITS

Analyze the circuit diagram to solve for the current and potential difference through each resistor.