
Electricity
Created on 24th April 2025
Grade level: Grade 10th grade
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32 Questions
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Questions (32)
1. What is the unit of electric current?
Ampere
4 choice options
2. What is Ohm's Law?
V = IR
4 choice options
3. Which of the following materials is a good conductor of electricity?
Copper
4 choice options
4. What is the total resistance in a series circuit with resistors of 2Ω, 3Ω, and 5Ω?
10Ω
4 choice options
5. What is the effect of increasing the voltage in a circuit according to Ohm's Law?
Current increases
4 choice options
6. Which of the following is a series circuit?
All components are connected end-to-end
4 choice options
7. What does the term 'voltage drop' refer to?
Loss of electrical potential energy
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8. What happens to the current in a parallel circuit if one branch is removed?
Total current increases
4 choice options
9. Which of the following statements is true about electric power?
Power = Voltage x Current
4 choice options
10. What is the primary purpose of a fuse in an electrical circuit?
To prevent overcurrent
4 choice options
11. What is the unit of electric current?
Ampere
4 choice options
12. What does Ohm's Law state?
V = IR
4 choice options
13. Which of the following is a conductor?
Copper
4 choice options
14. What is the formula for electrical power?
All of the above
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15. In a parallel circuit, the voltage across each component is:
The same
4 choice options
16. What is the purpose of a fuse in an electrical circuit?
To protect the circuit
4 choice options
17. The resistance of a conductor depends on:
All of the above
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18. What do you call a circuit that allows electricity to flow?
Closed circuit
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19. Which device is used to measure electric current?
Ammeter
4 choice options
20. What is the total resistance in a series circuit with three resistors of 2Ω, 3Ω, and 5Ω?
10Ω
4 choice options
21. If the voltage across a resistor is doubled, what happens to the current?
It doubles
4 choice options
22. What is the primary source of electrical energy in homes?
Electricity from power plants
4 choice options
23. What is the effect of increasing resistance in a circuit with constant voltage?
Decreases current
4 choice options
24. Which of the following statements is true about series circuits?
Current is the same in all components
4 choice options
25. What type of energy transformation occurs in a battery?
Chemical to electrical
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26. Which instrument measures voltage in a circuit?
Voltmeter
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27. What is the role of a resistor in a circuit?
To decrease current
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28. In terms of energy, what happens to a bulb when it is connected to a power source?
It converts electrical energy to light energy
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29. What is the primary difference between AC and DC current?
AC flows in both directions, DC flows in one direction
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30. What safety device is used to prevent overload in a circuit?
Fuse
4 choice options
31. What happens to the total resistance in a parallel circuit if one resistor is removed?
It decreases
4 choice options
32. What is the relationship between voltage, current, and resistance known as?
Ohm's Law
4 choice options