Answer:
I = 5[amp]
Explanation:
Electrical power is defined as the product of voltage by current.
![P=V*I](https://tex.z-dn.net/?f=P%3DV%2AI)
where:
P = power = 1150 [W]
V = voltage = 230 [V]
I = current [amp]
Now replacing:
![1150=230*I\\I=1150/230\\I=5[amp]](https://tex.z-dn.net/?f=1150%3D230%2AI%5C%5CI%3D1150%2F230%5C%5CI%3D5%5Bamp%5D)
A 15 [amp] fuse must be used. Always the fuse must be larger than the operating current, to protect the equipment from very high currents. above 15 [amp]
Density is defined as the ratio of mass and volume of an object
![Density = \frac{mass}{volume}](https://tex.z-dn.net/?f=Density%20%3D%20%5Cfrac%7Bmass%7D%7Bvolume%7D)
mass = 33 g
![Volume = 4.5 cm^3](https://tex.z-dn.net/?f=Volume%20%3D%204.5%20cm%5E3)
Now we can use the formula of density
![Density = \frac{33}{4.5}](https://tex.z-dn.net/?f=Density%20%3D%20%5Cfrac%7B33%7D%7B4.5%7D)
![Density = 7.33 \frac{g}{cm^3}](https://tex.z-dn.net/?f=Density%20%3D%207.33%20%5Cfrac%7Bg%7D%7Bcm%5E3%7D)
Answer:
I am not sure of the answer but its either A or B