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.

Back To O Level Physics

Back To List of O Level Physics Quiz

Enter email to receive results:

1. Two insulated metal spheres X and Y are initially in contact. While a positively charged rod is near X, the spheres are moved apart. After this action X has a negative charge.

The charge on Y will be:

positive and smaller than that on X.

negative and the same size as that on X.

positive and the same size as that on X.

negative and smaller than that on X.

2. Three resistors have the same resistance, R, where R is positive and of some finite value. These three resistors are connected in a circuit. Which of the following combinations of their voltages is NOT possible?

0 V, 2 V, 5 V

2 V, 2 V, 2 V

0 V, 0 V, 0 V

3 V, 2 V, 5 V

3. 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?

The fuse melts and switches off the circuit

The metal case becomes live and dangerous

The current flows to earth and the fuse is not affected

The metal case becomes very hot

4. Which diagram correctly shows the electric field lines between two point charges?

B

C

D

A

5. Which of the following is a correct unit of current?

$\frac{C}{s}$

CV

VR

QV

6. A battery containing 1200 C of charge is connected to a circuit. What is the time taken to discharge the battery if the current in the circuit is 6 A?

200 hours

2 hours

20.0 seconds

200 seconds

7. A resistor has 3 A current flowing through it. How much charge has flown through the resistor in 4 seconds?

6 C

3 C

18 C

12 C

8. The diagram above shows an electrical circuit. Which of the following statements is true about the point (with all arrows) in the diagram above.

Electrons are flowing in direction 4.

Electrons are flowing in either direction 1 or direction 3.

Electrons are flowing in direction 2.

Current is flowing in direction 4.

9. Why can birds stand on an overhead transmission line without suffering any harm?

There is no potential difference between their feet.

Their bodies have very high resistance.

Their feet are very good insulators.

The spaces between their feathers act as insulators.

10. An electric heater consists of a heating element mounted on a metal reflector. The reflector is connected to earth.

Where should the switch for the heating element be connected?

between the neutral wire and the heating element

between the live wire and the heating element

between the live wire and the neutral wire

between the earth wire and the reflector

 Loading...

 

Back To O Level Physics

Back To List of O Level Physics Quiz