Practice MCQs For For Static Electricity, Current Electricity, D.C. Circuits and Practical Electric Circuitry



This quiz contains practice questions for GCE ‘O’ level topics: Static Electricity, Current Electricity, D.C. Circuits and Practical Electric Circuitry. There are explanations for some of the questions after you submit the quiz. If you could not figure out why a particular option is the answer, feel free to drop a comment below or ask a question in ‘O’ & ‘A’ Level Discussion section of the forum. If you wish to contribute questions to this quiz, please contact us.

The quiz comprises of 10 questions, which are randomly selected from a large pool of questions. After completion, you can refresh the page and try the quiz again for a new set of 10 questions.

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1. Under which condition does Ohm's law apply?
2. Which of the following statements correctly interpret the meaning of 3 A?
3. A wire of length l and cross-sectional area A has a resistance R. The same amount of material is used to make a wire twice as long.

What is the resistance of the new wire?
4. A resistor has 3 A current flowing through it. How much charge has flown through the resistor in 4 seconds?
5. The case of an electric fan is earthed. The plug to the fan contains a 5 A fuse. There is a current of 4 A when the fan works normally.

The cable to the fan becomes so worn that the live wire makes electrical contact with the metal case.

What happens?
6. How could the unit of potential difference, the volt, also be written?
7. A house-owner replaces a failed fuse for the lights of the house. When the lights are switched on, the second fuse also fails. The house-owner then uses a third fuse with a higher rating than the previous two.

Why is this not a sensible thing to do?
8. An electrostatically charged object will pick up small pieces of paper. Which of the following will not pick up pieces of paper?
9. A negatively-charged strip is brought near to, but not touching, an uncharged conductor. If the conductor is earthed, it
10. An electrical quantity is defined as 'the energy converted by a source in driving a unit charge round a complete circuit.'

What is this quantity called?

 

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