G10-Term2 - Chap1 - Electricity and electronics

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​Week 5 - School Based Assessment should be completed before the end of this week. (100 Marks)

Week 7 - End of Term Assessment should be completed during this week. (100 Marks)

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​What is the Difference Between Series and Parallel Circuits?

​In a series circuit, the components are connected one after the other, forming a single, continuous path for the current to flow. This means that the same amount of electrical current passes through each component in the circuit.

​Total Resistance in a Series Circuit:

​R = R₁ + R₂ + R₃ + ... ... ... R_{n ohms(}Ω₎

​R1 = 10 Ω

R2 = 30 Ω

Therefore, the total resistance (RT) is:

RT = R1 + R2 = 10 Ω + 30 Ω = 40 Ω

​Parallel Connection: When components are connected in parallel, they are essentially connected across the same two points in the circuit. This means they share the same voltage source and each component has its own independent path for current to flow.

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Poll

Identify the type of circuit?

• Series

• Parallel

​Voltage Sources in Series:

​Total Voltage: The total voltage across the entire series is the sum of the individual voltages of each battery.
In this case, 1.5V + 1.5V + 1.5V = 4.5V

​Ohm's Law is a fundamental principle in electrical circuits that describes the relationship between voltage, current, and resistance

​V = I * R

​where:

• V is the voltage measured in volts (V)

• I is the current measured in amperes (A)  

• R is the resistance measured in ohms (Ω)

​The variables for V= 12 V and R = 80Ω
What is the value of current in circuits ?

​ https://wordwall.net/resource/72019857/electricity-in-the-uae

First, find the total resistance: R = (10 x 5) + (20 x 5) = 50 + 100 = 150Ω.

 

Then find the current: I = V/R = 15/150 = 0.10 A = 100 mA.

 

This is the current through each of the resistors in the circuit.

 

If Rn = 10 Ω, then Vn = I(Rn) = 0.1 x 10 = 1.0 V.

 

If Rn = 20 Ω, then Vn = I(Rn) = 0.1 x 20 = 2.0 V.

 

​Ohm's Law = V = I * R

​In the given circuit, there are four resistors with values of 50 Ω, 60 Ω, 70 Ω, and 80 Ω.

Find the value of the current.

Find the value of the voltage drop across each resistor, denoted as E1 to E4

​Activity 1.1.2

​Activity 1.1.4

​A battery providing 5 volts is connected to three resistors in parallel. The resistances are as follows:

• Find the currents and flowing through resistors and respectively.

• Find the total current drawn by the entire circuit.

​steps to join my class:

1. Open the pdf

2. Follow the video

3. create the simple circuit

​Activity 1.1.7

​In this activity, you will:
1. measure the equivalent resistance in a series circuit.
2. measure the equivalent resistance in a parallel circuit

​Series :

​Parallel :

Multiple Choice

What type of circuit is this?

• Series Circuit

• Parallel Circuit

​Activity 1.1.9

​In the following circuit, there are five resistors. Two resistors have a resistance of 100 Ω, and three resistors have a resistance of 10 Ω. The current through each 100 Ω resistor is 500 mA.

The current is equally distributed among the 10 Ω resistors, find the following:

-       the current through each 10 Ω resistors.

-       the voltage across each 10 Ω resistors.