Answer:
(a) surface area of the plate will be equal to
(b) Charge on the capacitor is equal to
Explanation:
We have given spacing between the plates d = 0.05 mm =
Value of capacitance
(A) Capacitance of a parallel plate capacitor is equal to
So
So surface area of the plate will be equal to
(B) It is given that capacitor is charged by 1.5 volt
So voltage V = 1.5 volt
Charge on the capacitor is equal to
So
Answer:
a) 627840000 W
b) 0.9233
Explanation:
The rate at which energy flows through the dam for the generation of electricity is proportional to the volulme flow rate times the potential energy per unit volume.
Mathematically,
P = Q(ρgh)
Where, ρ is water density, g is accelaration due to gravity, h is height through which water falls over the turbine and Q is the discharge.
a) The power can be calculated as
P = 640(1000×9.81×221)
P = 627840000 W
b) The ratio = Calculated power / avarage power
= 62784×10^4/680×10^6
= 0.9233
Answer:
D
Explanation:
by increasing the distance through which force is applied, by changing the direction of force applied or by multiplying force of speed of the energy applied
I think the oceans will spill on the land, and then make a huge flood.
Answer:
The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength. Speed shows how long it takes for wavelengths to travel.