Answer:
quantity = 0.645749
Explanation:
given data
holds liquid water = 1%
hold vapor water = 99%
temperature = 185°C
solution
we know that at temperature 185°C
Specific Volume of Saturated Liquid water (vf) = 0.0011343 m³/kg
and Specific Volume of Saturated Vapor (vg) = 0.17390 m³/kg
so quality will be
quality = ................1
put here value we get
quality =
quantity = 0.645749
Answer:
Given:
efficiency of the turbine, = 65% = 0.65
available gross head, = 45 m
head loss, = 5 m
Discharge, Q =
Solution:
The nozzle is 100% (say)
Available power at the inlet of the turbine, is given by:
(1)
where
= density of water = 997
acceleration due to gravity, g =
Using eqn (1):
Also, efficency, is given by:
Answer:
a) E = b) i.
Explanation:
Assuming no other forces acting on the electron, as the field is pushing the electron back till it comes to rest momentarily, applying the work-energy theorem, the loss in kinetic energy, must be equal to the work done by the field on the electron.
The force that does work on the electron is the one due to the electric field E, and by definition of electric field, can be expressed as follows:
W = q*E = -e*E (1)
This work must be equal to the change in Kinetic Energy:
ΔK = Kf -K₀ = 0 - K = -K (2)
From (1) and (2), and solving for E, we have:
E =
b) As the electric field (by convention) has the direction that it would have a positive test charge, the electrons (being negative charges),when starting from rest),have the direction opposite to the field.
In this case, as the electron has an initial velocity, and the field is opposing to the electron movement, we conclude that the electric field is in the direction of the electron´s motion, due to the electron slows down, and then comes momentarily to an stop, before changing direction and move opposite to the field as it is its natural behavior.
Answer:
1) a. Customers requiring AC electric power transmission for powering remote devices which may include a subsea transmission system where power is distributed to subsea devices
b. Customers that utilize commutator-type motors
2) The primary voltage is 150 volts
Explanation:
The parameters given are;
Number of primary winding, = 50 turns
Number of secondary winding, = 150 turns
Voltage in secondary winding, = 450 volts
Voltage in primary winding =
The relation between ,
,
and
is as follows;
Which gives;
From which we have;
The primary voltage = 150 volts.