Series Circuits

We learn about the properties of series circuits. We examine how to find the total voltage, current, and resistance of a series circuit and learn how to find these things across individual resistors within the circuit.

Unit 5 Segment G: Series Circuits We learn about the properties of series circuits. We examine how to find the total voltage, current, and resistance of a series circuit and learn how to find these things across individual resistors within the circuit.

Premiere Date: August 2, 2018 | Runtime: 00:06:18

## Learning Objectives

-Understand that the total current in a series circuit is equal to the current in each resistor in the circuit.

-Understand that the total voltage in a series circuit is equal to the sum of the voltages of the individual resistors in the circuit.

-Understand the difference between an open circuit and closed circuit.

-Calculate the equivalent resistance for a series circuit.

-Determine the voltage, current, and resistance for a total series circuit and for individual resistors within that series circuit.

## Vocabulary

closed circuit - a circuit with no breaks, in which current can flow continuously.

equivalent resistance (Req) - the total resistance of a collection of resistors; for a series circuit, is equal to the sum of the resistances of the individual resistors. For a parallel circuit, the reciprocal of the equivalent resistance is equal to the reciprocal of each of the resistances of the individual resistors.

Ohm’s Law - law formulated by Georg Ohm that relates current, voltage, and resistance within a circuit; voltage is equal to current times resistance.

open circuit - a circuit with a break, either a switch or malfunction in which current cannot flow.

series circuit - a closed loop in which the current follows a single path.

voltage drop - loss of voltage due to resistance.

## Georgia Standards of Excellence

SP5Obtain, evaluate, and communicate information about electrical and magnetic force interactions.

SP5.dPlan and carry out an investigation of the relationship between voltage, current, and power for direct current circuits. (Clarification statement: Application of Ohm’s Law to different circuit configurations, not limited to parallel and series, and calculations of equivalent resistance are expected.)

SPS10Obtain, evaluate, and communicate information to explain the properties of and relationships between electricity and magnetism.

SPS10.bDevelop and use models to illustrate and explain the conventional flow (direct and alternating) of current and the flow of electrons in simple series and parallel circuits. (Clarification statement: Include advantages and disadvantages of series and parallel circuits.)

## Request Teacher Toolkit

The Physics in Motion teacher toolkit provides instructions and answer keys for study questions, practice problems, labs for all seven units of study.  GPB offers the teacher toolkit at no cost to Georgia educators. It will be available in September 2018. To preorder your teacher toolkit, complete and submit this form to request the teacher toolkit. You only need to submit this form one time to get materials for all seven units of study.