Answer:
B. 10,000 ohms
Explanation:
|8000 +j6000| = √(8000² +6000²) = 1000√(64 +36) = 1000√100 = 10,000
The impedance is 10,000 ohms.
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
Answer:
a = width of the duct (mm, in) b = height of the duct (mm, in) Hydraulic diameter of some common rectangular ducts: Hydraulic Diameter - dh - (mm) Width of Duct.
Explanation:
Answer:
View Image
I never heard of intensity and potency before, but im just gonna assume they're another term for potential and current.
Basic concept to knowing how to solve circuit is:
1.) Current in series are the same.
2.) Voltage in parallel are the same
3.) Resistors in series can be add up with
4.) Two resistors in parallel adds up with
5.) Know how to use kirchoff current law and kirchoff voltage law. You gotta learn this by yourself because it does take some practice to get used to.