Chapter 6 Series Circuits. Chapter 6 Series Circuits.

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Presentation transcript:

Chapter 6 Series Circuits

Objectives Determine the total resistance of a series circuit. Determine the voltage drops in a series circuit. Determine the current values of a series circuit. Determine the wattage values of a series circuit. © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Objectives Apply Ohm’s law to solve for unknown voltage, current, and resistance in a series circuit. Apply series circuit theory to assist in troubleshooting a series circuit. © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Series Circuit Principles ET = E1 + E2 + E3…+ EN RT = R1 + R2 + R3…+ RN IT = I1 = I2 = I3…= IN © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Voltage in a Series Circuit Kirchhoff’s voltage law ET = E1 + E2 + E3…+ EN © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Current in a Series Circuit IT = I1 = I2 = I3…= IN © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Resistance in a Series Circuit RT = R1 + R2 + R3…+ RN © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Determining an Unknown Voltage © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Power in a Series Circuit PT = ET × IT © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Review What does the source voltage of a series circuit equal? The total value of each individual voltage drop © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Review What does the source current of a series circuit equal? The same current value as any point in the circuit © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Review What does the total resistance in a series circuit equal? The total circuit resistance combined © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Review How do you determine power in a series circuit? Total voltage times total current © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Applying Ohm’s Law to a Series Circuit © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Airfield Lighting System When lights go out, amount of voltage changes to keep other lamps burning at same brightness © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Troubleshooting a Series Circuit Using a Voltmeter Common circuit faults Bad battery Open switch Blown fuse Short circuit © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Steps in Troubleshooting Make sure switch is closed Determine if voltage exists at supply Take voltage drop reading across fuse Check voltage across switch Check voltage across each resistor © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Review What is the formula used to determine total resistance when total voltage and current are known? RT = ET / IT © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Review What is the most common circuit fault in a series circuit? An open © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.

Glossary Kirchhoff’s voltage law Series circuit In a simple circuit, the total voltage is equal to the sum of the individual voltages. Series circuit Contains only one possible path for electrons. © Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.