Chapter 3: Electric
What you need to learn in this chapter
In this chapter, we will be learning about electric currents and potential difference. We will understand the concept of electric field and its strength, known as E. We will also compare and contrast Ohm conductors and non-Ohm conductors, and solve problems related to series and parallel combination circuit connections.
Next, we will study electromotive force (Ɛ) and internal resistance (r). We will learn about the meaning of electromotive force and how it relates to electric circuits. Additionally, we will understand the concept of internal resistance and its significance in circuits.
Lastly, we will explore the relationship between electrical energy (E), voltage (V), current (I), and time (t). We will also learn about the relationship between power (P), voltage (V), and current (I). These concepts will help us understand the energy and electrical power in electric circuits.
Topics in this chapter
1. Current and Potential Difference
What you will learn in this topic
- Explain the meaning of electric field
- Describes the electric field strength, E
- Describe the behavior of charged particles in an electric field
- Define electric current
- Define potential differences, V
2. Resistance
What you will learn in this topic
- Compare and contrast Ohm conductors and non-Ohm conductors
- Solve problems for series and parallel combination circuit connections
- Explain the meaning of wire resistance
- Describe and summarize the factors that influence wire resistance through experiments
- Communicate about the application of wire resistance in daily life
- Solve problems involving wire resistance formulas
3. Electromotive Force and Internal Resistance
What you will learn in this topic
- Explain the electromotive force, Ɛ
- Describe internal resistance, r
- Experiment to determine e.m.f. and resistance in dry cells
- Solve problems involving e.m.f. and internal resistance in dry cells
4. Energy and Electrical Power
What you will learn in this topic
- Formulate the relationship between electrical energy (E), voltage (V), current (I) and time (t)
- Formulate the relationship between power (P), voltage (V) and current (I)
- Solve problems in daily life involving energy and electrical power
- Compare power and energy consumption rates of various electrical appliances
- Mencadangkan langkah penjimatan penggunaan tenaga elektrik di rumah
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