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- 1. Multiple Choice
Which of the following are insulators?
(1) Chalk
(2) Pencil lead
(3) Rubber tubing
(4) Aluminium foil
(1) and (3) only
(1) and (4) only
(1), (2) and (3) only
(1), (2), (3) and (4)
- 2. Multiple Choice
Which of the following correctly describes the direction of the current flowing in the circuit above?
Positive terminal of battery → light bulb → switch → negative terminal of battery
Negative terminal of battery → switch → light bulb → positive terminal of battery
Positive terminal of battery → switch → light bulb → negative terminal of battery
The current sometimes flows clockwise and sometimes anticlockwise.
- 3. Multiple Choice
What is the reading of the ammeter shown?
36 mA
336 mA
360 mA
3.6 A
- 4. Multiple Choice
Which of the following does NOT make use of the heating effect of electric current?
television
toaster
kettle
heater
- 5. Multiple Choice
If we want to measure the voltage across the resistor, how should we connect the voltmeter?
(1) only
(2) only
(1) and (3) only
(2) and (3) only
- 6. Multiple Choice
The two voltmeters in the circuit below are identical. The voltage of the electric cell is 1.5 V. Which of the following statements about the circuit is correct?
If voltmeter Q is disconnected, the reading of voltmeter P will become zero.
The reading of voltmeter P is larger than the reading of voltmeter Q.
The reading of voltmeter P is smaller than the reading of voltmeter Q.
Voltmeters P and Q show the same readings.
- 7. Multiple Choice
A student uses an ammeter and a voltmeter to measure the current flowing through a bulb and the voltage across a battery in a circuit. Which of the following circuit diagrams shows the correct connection?
- 8. Multiple Choice
As the resistance of a circuit increases, the current passing through the circuit also increases.
True
False
- 9. Multiple Choice
Which of the following statements about a series circuit connected to different light bulbs must be correct?
(1) Currents flowing through different light bulbs in the circuit are the same.
(2) Voltages across different light bulbs in the circuit are the same.
(3) The brightness of different light bulbs is the same.
(1) only
(2) only
(1) and (2) only
(1), (2) and (3)
- 10. Multiple Choice
Six identical light bulbs are connected in the circuit as shown.
Arrange the light bulbs in descending order of the brightness.
Z > X, Y > P, Q, R
P > Q, X > R, Y, Z
P, X, Z > Q, Y > R
R, Y, Z > Q, X > P
- 11. Multiple Choice
Which of the following circuits is different from the rest?
- 12. Multiple Choice
In the circuit below, what is the size of the current passing through bulb X?
0.1 A
0.2 A
0.3 A
0.4 A
- 13. Multiple Choice
What is the function of the following device?
Its resistance can be adjusted so as to control the current that flows through an electrical appliance.
It is a device to save energy.
It is used to open or close a circuit.
It is a safety device that breaks the circuit when the current is too large.
- 14. Multiple Choice
Which of the following is an improper action of using electricity?
Turn on the electric heater in bathroom when bathing.
Replace damage wires with new wires.
Touch switches with dry hands.
Use a fuse with a fuse rating slightly higher than the current in the circuit.
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