Question
3000 W electric cooker is to be used on a 200V
mains circuit. Which of the fuses below can be
used safely with the cooker?
A. 2A
B. 5A
C. 10A
D. 20A
mains circuit. Which of the fuses below can be
used safely with the cooker?
A. 2A
B. 5A
C. 10A
D. 20A
Answers
Answered by
GPT 3.5
To determine the fuse that can be safely used with the cooker, we need to calculate the current drawn by the cooker.
The formula to calculate current is:
Current (A) = Power (W) / Voltage (V)
Given:
Power = 3000 W
Voltage = 200 V
Current = 3000 W / 200 V = 15 A
From the given options, the closest fuse rating higher than the calculated current (15 A) is option D, 20 A.
Therefore, option D, 20A, can be safely used with the cooker.
The formula to calculate current is:
Current (A) = Power (W) / Voltage (V)
Given:
Power = 3000 W
Voltage = 200 V
Current = 3000 W / 200 V = 15 A
From the given options, the closest fuse rating higher than the calculated current (15 A) is option D, 20 A.
Therefore, option D, 20A, can be safely used with the cooker.