Circuits Series Circuits Circuits Learning Objectives Calculate the

Circuits Series Circuits

Circuits Learning Objectives • Calculate the current, potential difference, and resistance of elements connected in series

Series Circuits • Types of connections in a circuit determine values of current, resistance, and voltage – Series circuit – a circuit in which elements connected along the same electrical path

Series Circuits • Equivalent resistance (R) – the total amount of resistance over the entire circuit or part of the circuit – Equivalent resistance increases and current decreases when multiple resistors are connected in series

Series Circuits Example Part 1 Ex) A 15 Ω resistor and a 12 Ω resistor are connected in series with a 9. 0 V battery as shown in the diagram. How much current is flowing through the circuit?

Series Circuits Example Part 2 Ex) A 15 Ω resistor and a 12 Ω resistor are connected in series with a 9. 0 V battery as shown in the diagram. How much current is flowing through the circuit? I. II. Strategy Given and unknown IV. Conversions needed? No. V. Intermediates needed? Yes. VI. Solve III. Formula Yes. VII. Does the result make sense?

Series Circuits Example Part 1 Ex) A 15 Ω resistor, a 12 Ω resistor and a 21 Ω resistor are connected in series with a 9. 0 V battery as shown in the diagram. How much current is flowing through the circuit?

Series Circuits Example Part 2 Ex) A 15 Ω resistor, a 12 Ω resistor and a 21 Ω resistor are connected in series with a 9. 0 V battery as shown in the diagram. How much current is flowing through the circuit? I. II. Strategy Given and unknown IV. Conversions needed? No. V. Intermediates needed? Yes. VI. Solve III. Formula Yes. VII. Does the result make sense?

Series Circuits • Multiple resistors or voltage sources connected in series Relationship Resistan ce Sum of individual resistances Voltage Sum of individual voltages Equation

Series Circuits Example Part 1 Ex) Four 7. 0 Ω resistors are connected in series with a battery as shown in the diagram. If 0. 11 A of current are flowing through the circuit, what is the potential difference of the battery?

Series Circuits Example Part 2 Ex) Four 7. 0 Ω resistors are connected in series with a battery as shown in the diagram. If 0. 11 A of current are flowing through the circuit, what is the potential difference IV. Conversions needed? No. of. I. the. Strategy battery? II. Given and unknown V. Yes. Intermediates needed? VI. Solve III. Formula so Yes. IV. Does the result make sense?

Series Circuits Example Part 1 Ex) A 2. 0 Ω resistor, a 3. 0 Ω resistor, and a 5. 0 Ω resistor are connected in series with a 1. 5 V battery as shown in the diagram. What is the power used by the circuit?

Series Circuits Example Part 2 Ex) A 2. 0 Ω resistor, a 3. 0 Ω resistor, and a 5. 0 Ω resistor are connected in series with a 1. 5 V battery as shown in the diagram. What is the power used by the circuit? I. II. Strategy Given and unknown III. Formula IV. Conversions needed? No. V. Intermediates needed? Yes. VI. Solve Yes. IV. Does the result make sense?

Circuits Learning Objectives • Calculate the current, potential difference, and resistance of elements connected in series