Answer:
5.833
Explanation:
Coefficient of Perfomance (COP) is the ratio of refrigeration effect to power input.
where RE is refrigeration effect and P is power input
Here, the power input is given as 30 kW
We also know that 1 ton cooling is equivalent to 3.5 kW hence for 50 tons, RE=50*3.5=175 kW
Now the
Semiconductors are primarily used in <em>2) electronic controls</em>.
Tá fáilte romhat.
Maybe because of shipping costs and if you need to buy materials from a far place such as different international travels?