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Theory

Exercises

1. Electrical appliances

Difficulty: easy

2
2. Terms of electricity

Difficulty: easy

2
3. Electrical components

Difficulty: easy

3
4. Electrical units

Difficulty: easy

3
5. Symbols of electrical components

Difficulty: easy

2
6. Electrical instruments

Difficulty: easy

2
7. Calculation of current

Difficulty: easy

3
8. Circuit current problem

Difficulty: medium

4
9. Potential difference

Difficulty: medium

4
10. Resistance of a wire

Difficulty: medium

4
11. Heating effect

Difficulty: medium

6
12. Resistance calculation

Difficulty: medium

5
13. Energy consumption

Difficulty: medium

6
14. Resistance analysis

Difficulty: medium

6
15. Consumption of current

Difficulty: hard

6
16. Conductivity

Difficulty: hard

9
17. Electrical connections

Difficulty: hard

6
18. Electric bulb

Difficulty: hard

7
19. Electrical components in a circuit

Difficulty: hard

6
20. Differences between electrical terms

Difficulty: hard

6

Textbook Questions

1. Flow of current

Difficulty: medium

4
2. Current

Difficulty: medium

4
3. Filament

Difficulty: medium

6
4. Circuit wires

Difficulty: medium

6
5. Elements in appliances

Difficulty: medium

6
6. Household circuits

Difficulty: hard

10

Tests

1. Training test 1

Difficulty: easy

8
2. Training test 2

Difficulty: medium

9

Teacher manual