Chapter 23 Part 2 - Circuits.pptx

Page 1: Introduction to Electric Circuits

• Components and identifiers listed, including integrated circuit types (e.g., CD74HCT259E, CD74HCT132E).

• Chapter focus: Electric Circuits.

Page 2: Drawing Electrical Circuits

• Circuits are represented based on component connections (series vs. parallel).

• Common symbols for electrical devices include:

  • Battery

  • Wire

  • Light bulb

  • Resistor

  • Switch

  • Ammeter or Voltmeter

Page 3: Series Circuits

• Components wired end to end, creating a single path for electrons.

• Characteristics:

  • No independent operation; all components must be on or off together.

  • Ammeters are connected in series with the circuit.

Page 4: Properties of Series Circuits

• Adding resistors increases total resistance:

  • Formula: R_total = R₁ + R₂ + R₃...

• Current remains constant across the circuit:

  • Formula: I_total = I₁ = I₂ = ...

• Voltage drop occurs across each resistor (potential loss).

Page 5: Series Circuit Example

• Key questions include:

  • What is the total resistance of the circuit?

  • What is the current flowing through the circuit?

  • What is the voltage drop across each resistor?

  • What occurs if a resistor (e.g., 5 ohm) fails?

Page 6: Series Circuit Example 2