Practice Detailed Explanations And Applications (3) - Electricity

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10 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a conductor?
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Think about metals like copper.
Question 2.
What do insulators do?
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Consider materials like rubber.
3Question 3.
What is the primary function of a conductor?
- To store charge
- To allow flow of electricity
- To block current
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Think about materials that carry electricity.
4Question 4.
True or False: Insulators allow current to flow easily.
- True
- False
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Consider the role of rubber covering wires.
Question 5.
Design an electrical circuit diagram that includes at least two conductors and one insulator. Explain why certain materials were chosen.
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Consider where safety and efficiency are needed.
Question 6.
An electric motor is rated at 75W. If the voltage supplied is 150V, calculate the current flowing through the motor.
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Rearrange the power formula to find current.

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