Home Electrical Engineering Activity 1.2 4 Circuit Calculations Answer Key

Activity 1.2 4 Circuit Calculations Answer Key

May 2, 2024

Embark on an electrifying journey with Activity 1.2 4 Circuit Calculations Answer Key, your comprehensive guide to mastering the fundamentals of electrical circuits. This key unlocks a treasure trove of insights, empowering you to navigate the intricacies of current, voltage, and resistance with confidence.

Delve into the concepts of Ohm’s Law, unravel the secrets of series and parallel circuits, and equip yourself with the knowledge to solve circuit problems like a seasoned electrician. Prepare to illuminate your understanding of electrical circuits and conquer the challenges that lie ahead.

Circuit Analysis

Activity 1.2 4 circuit calculations answer key

Ohm’s Law, a fundamental principle in circuit analysis, establishes the relationship between voltage (V), current (I), and resistance (R) in a circuit. It states that the current flowing through a conductor is directly proportional to the voltage applied and inversely proportional to the resistance.

Mathematically, Ohm’s Law can be expressed as V = IR.Circuit analysis involves understanding different types of circuits, such as series circuits, parallel circuits, and combination circuits. In series circuits, components are connected in a single path, resulting in the same current flowing through all components.

In parallel circuits, components are connected in multiple paths, allowing different currents to flow through each component. Combination circuits combine series and parallel connections.

Circuit Calculations: Activity 1.2 4 Circuit Calculations Answer Key

Series Circuits:

  • -*Current (I)

    I = V / R (total resistance)

  • -*Voltage (V)

    V = I

  • R (individual resistance)

  • -*Resistance (R)

    R = V / I (individual resistance)

Parallel Circuits:

  • -*Current (I)

    I = V / R (individual resistance)

  • -*Voltage (V)

    V is the same across all parallel branches

  • -*Resistance (R)

    R = V / I (total resistance)

Table Comparing Series and Parallel Circuit Formulas:| Circuit Type | Current (I) | Voltage (V) | Resistance (R) ||—|—|—|—|| Series | I = V / R (total) | V = I

R (individual) | R = V / I (individual) |

| Parallel | I = V / R (individual) | V is the same across all branches | R = V / I (total) |

Activity 1.2 4 Circuit Calculations

Activity 1.2 4 circuit calculations answer key

Purpose:To provide hands-on experience in applying Ohm’s Law and circuit analysis principles. Objectives:

  • Understand the concept of Ohm’s Law and its application in circuit calculations.
  • Calculate current, voltage, and resistance in series and parallel circuits.
  • Analyze circuit behavior and verify theoretical calculations through practical measurements.

Data Collection Table:| Circuit Type | Component | Voltage (V) | Current (I) | Resistance (R) ||—|—|—|—|—|| Series | Resistor 1 | | | || Series | Resistor 2 | | | || Series | Total | | | || Parallel | Resistor 1 | | | || Parallel | Resistor 2 | | | || Parallel | Total | | | |

Answer Key

Activity 1.2 4 circuit calculations answer key

Series Circuit:

  • -*Resistor 1

    V = 6 V, I = 0.2 A, R = 30 Ω

  • -*Resistor 2

    V = 12 V, I = 0.4 A, R = 30 Ω

  • -*Total

    V = 18 V, I = 0.6 A, R = 30 Ω

Parallel Circuit:

  • -*Resistor 1

    V = 6 V, I = 0.3 A, R = 20 Ω

  • -*Resistor 2

    V = 6 V, I = 0.2 A, R = 30 Ω

  • -*Total

    V = 6 V, I = 0.5 A, R = 12 Ω

Reasoning:The answers are derived from Ohm’s Law and the circuit configuration. In series circuits, the current is the same throughout the circuit, while the voltage is distributed across the resistors. In parallel circuits, the voltage is the same across all branches, while the current is divided between the resistors.

Common Errors:

  • Incorrect application of Ohm’s Law (e.g., using the wrong formula)
  • Misunderstanding the circuit configuration (e.g., confusing series and parallel connections)
  • Measurement errors (e.g., incorrect readings from the multimeter)

    Quick FAQs

    What is the significance of Ohm’s Law in circuit analysis?

Ohm’s Law establishes the fundamental relationship between current, voltage, and resistance in a circuit, providing a crucial foundation for understanding and solving circuit problems.

How do series and parallel circuits differ in their behavior?

In series circuits, components are connected in a single path, resulting in the same current flowing through each component. In parallel circuits, components are connected in multiple paths, allowing different currents to flow through each branch.

What is the purpose of Activity 1.2 4 Circuit Calculations?

This activity aims to provide hands-on experience in applying Ohm’s Law and circuit analysis techniques to solve practical circuit problems, fostering a deeper understanding of electrical circuits.