Question:
In a typical transmission line, the current I is very small and the voltage V is very large. A unit length of the line has resistance R.
For a power line that supplies power to 10 000 households, we can conclude that
a) IV < I²R
b) I²R = 0
c) IV = I²R
d) IV > I²R
e) I = V/R
Answer:
d) IV > I²R
Explanation:
In a typical transmission line, the current I is very small and the voltage V is very high as to minimize the I²R losses in the transmission line.
The power delivered to households is given by
P = IV
The losses in the transmission line are given by
Ploss = I²R
Therefore, the relation IV > I²R holds true, the power delivered to the consumers is always greater than the power lost in the transmission line.
Moreover, losses cannot be more than the power delivered. Losses cannot be zero since the transmission line has some resistance. The power delivered to the consumers is always greater than the power lost in the transmission.
The answer would be 5 years
Explanation:
Concentration overpotential, ηc,
I hope it helps you
Answer:
The minimum mass flow rate for the water is 14.39kg/s
Explanation:
In this question, we are asked to calculate the minimum mass flow rate for the water in kg/s.
Please check attachment for complete solution and step by step explanation
Answer:
a) Pelton Turbine
b) 
Explanation:
From the question we are told that:
Height 
Flow Rate 
Rotational speed 
Let
Density of water
Generally the equation for momentum is mathematically given by
