Page 142 - Physics Form 5 KSSM_Neat

(c) Based on your answer in 4(b), state the relationship between the gradient of the graph
and the resistivity of the conductor.

5. Figure 6 shows four types of air fryers A, B, C and D with different specifications. Study the
specifications of the four air fryers based on the following aspects:
• heating element
KEMENTERIAN PENDIDIKAN MALAYSIA
• coil turns of the heating element
• number of fan blades
• suitability of fuse

Air fryer A Air fryer B
Heating element: Heating element:
Nichrome Constantan

Fuse: 10 A Fuse: 10 A
Power rating: 240 V, 1500 W Power rating: 240 V, 1500 W

Air fryer C Air fryer D
Heating element: Heating element:
Constantan Nichrome

Fuse: 8 A Fuse: 8 A
Power rating: 240 V, 1500 W Power rating: 240 V, 1500 W

Figure 6
(a) What is the function of a fuse in an air fryer?
(b) What is meant by 240 V, 1500 W on the label of the air fryers?
(c) Discuss the specifications of the four air fryers to cook food quickly and safely.
(d) Determine the most suitable air fryer. Give your reasons.

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