Questions138
05.06.2020 •
Mathematics
(b) A hairdryer connected to the mains supply takes a current of 5.5
.Which of these fuses should be (1) used with the hairdryer?
A= 3A
B= 5A
C= 7A
D= 13A
(i) Explain your answer. (1)
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Ответ:
C = 7A
Step-by-step explanation:
A & B would 'blow' because they are not able to carry enough current.
D is discounted , because if there was an electrical malfunction the appliance would still work, but you could get an electric shock.
Ответ:
Step-by-step explanation:
1)Every whole number is a rational number.√
2)There are some fraction that are not rational number.√
3)every negative rational number lies to the right of zero on the number line.×
4) zero is not a rational number.×
5)every interger is a rational number.√