1. The Series Circuit Summary 1. The sum of the _____________or voltage equals the potential rise of the source. 2. The current is ______________ everywhere in the series circuit 3. The total resistance of the circuit (also called effective resistance) is equal to the sum of the __________________ click

2. Series Circuit and Ohm’s Law R total = R part =

3. How it looks on your Reference Tables What do these formulas tell us?

4. Example of a Series Circuit R 1 = 2 ohms R 2 = 3 ohms R 3 = 1 ohm V B = 12 V I = 2.0 A Find Voltage drop at each resistor

5. How Do We draw Circuits? A series circuit contains  (1) 9 V cell and 5  (1) resistor.  A voltmeter measures the voltage drop across the resistor.  An ammeter measures the current flowing in the circuit. 1)Draw the Circuit 2)Calculate the current in the circuit 3)What is the voltage drop across the resistor?

6. Series Circuits problem #2 A series circuit contains a 12 V battery with 5  and 3  resistors in series.  Draw the circuit  What is the voltage drop across the resistors?  What is the current flowing in the circuit?