Problem: What are the electric potential and electric current relationships in series circuits? Materials: Voltmeter Ammeters Circuit Construction Kit: https://phet.colorado.edu/sims/html/circuit- construction-kit-dc-virtual-lab/latest/circuit-construction-kit-dc-virtual-lab en.html Procedure: 1. Set up the series circuit shown in the diagram. Points have been labeled for reference only and represent junction points in the circuit. BE SURE TO SET THE VALUES FOR THE VOLTAGE OF THE BATTERY AND THE RESISTANCE OF THE RESISTORS AS SHOWN! The positive (orange end) of the battery should be facing down. 5.0 0 12.0 V 3.0 0 4.0 0 2. Connect the positive (red) terminal of the voltmeter to point h, and then touch the labeled points in turn with the negative terminal (black), noting and recording the reading on the voltmeter in each case. Calculate, by subtraction (Vb - V. = Vab), the potential difference across the power source and across each load and conductor. Remove the voltmeter from the circuit. 3. Use the ammeters to measure the current through each conductor in the circuit. Break the junctions and insert the ammeter if needed. Record your results in Table 1.Table 1 Series Circuits [4] Junctio Electric Conductor Potential Electric n Point Potential Difference (V) Current (A) M a ab b bc c cd d de e ef f fg g Questions: 1. How many paths are there for an electron to take through the series circuit? a) 1 b) 2 c) 3 d) 4 2. Calculate the sum of the decreases of the electric potential along the path and the sum ofthe electric potential increases. State the relationship between the two. a) There is more voltage from the battery than is used by the resistors. b) There is more voltage used by the resistors than is produced by the battery. c) The voltage used by the resistors is equal to the voltage supplied by the battery. 3. In a series circuit, how does the total current from the power source compare with the current through each individual resistor? a) The total current increases through the circuit. b) The total current decreases through the circuit. c) The total current stays the same through the circuit