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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

2
5. Symbols of electrical components

Difficulty: easy

2
6. Electrical instruments

Difficulty: easy

2
7. Calculation of current

Difficulty: easy

3
8. Circuit connections

Difficulty: easy

3
9. Circuit current problem

Difficulty: medium

3
10. Effective resistance

Difficulty: medium

3
11. Potential difference

Difficulty: medium

4
12. Resistance of a wire

Difficulty: medium

4
13. Heating effect

Difficulty: medium

3
14. Resistance calculation

Difficulty: medium

3
15. Energy consumption

Difficulty: medium

3
16. Consumption of current

Difficulty: hard

5
17. Resistance analysis

Difficulty: medium

6
18. Conductivity

Difficulty: hard

9
19. Electrical connections

Difficulty: hard

6
20. Electric bulb

Difficulty: hard

5
21. Electrical components in a circuit

Difficulty: hard

6
22. Differences between electrical terms

Difficulty: hard

6
23. Total resistance in a circuit

Difficulty: hard

10
24. Potential difference across the resistors

Difficulty: medium

3

Tests

1. Training test 1

Difficulty: easy

8
2. Training test 2

Difficulty: medium

9

Teacher manual