1. Grade 10 Multiple Choice Questions Click here to start the presentation Click here to start the presentation

3. Name the effect shown in the diagram. A Magnetizing B Electromagnetic induction C Charging D Earthing

5. Which properties make materials suitable for use as a core in an electromagnet? A It attracts another magnet. B difficult to magnetise and easy to demagnetise C difficult to magnetise and retains magnetic strength D easy to magnetise and demagnetise

7. Which particles that flows through the wire as the circuit is closed? A Electrons B protons C neutrons D electrons and protons

9. What is the part of a a.c generator acts as contact with coil and external circuit? A the armature A the armature B the brushes C the commutator D the slip rings

11. Which magnetic device is shown in the diagram? A. Electric bell B. Relay C. Loudspeaker D. Microphone

13. Why do people get electric shocks as shown in the diagram A Door knob has current B Body provides path for electrons to flow C. Body is charged D body is an insulator

15. Which of the following will not affect induced e.m.f of a coil? A moving the wire faster B using a stronger magnet C. Having more turns in the coil D Insulating the wire

17. The following diagram show the circuit symbol of an electric component. What is the component shows A Fuse B Fixed resistor C Cell D variable resistor

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