There are huge losses in the transmission, production and usage of electricity and the reduction of these losses in order to save electricity is called as conservation of energy.
As per the statistics, there is loss of nearly 4% while the transmission of electricity. Like wise during production also, lot of electricity get wasted due to the inefficient material used. None of the production material nor the equipment used have 100% efficiency and thus there is always a possibility of energy wastage.
When it is said that the energy is wasted , it simply means that the energy production which should have been 100% as per calculation is not completely derived from the source due to the inefficient conversion process. For example, a turbine while rotating must convert 100 % of the water energy or water falling on it into electrical energy but the turbine is not able to do so as some of the water is lost or its energy is lost before conversion while going through the mechanical process.
When the body touches the ground two types of Forces will be generated. The Force product of the weight and the Normal Force. This is basically explained in Newton's third law in which we have that for every action there must also be a reaction. If the Force of the weight is pointing towards the earth, the reaction Force of the block will be opposite, that is, upwards and will be equivalent to its weight:
F = mg
Where,
m = mass
g = Gravitational acceleration
F = 5*9.8
F = 49N
Therefore the correct answer is E.
Answer:
Explanation:
Apply Faraday's Newmann Lenz law to determine the induced emf in the loop:
where:
variation of the magnetic flux
is the variation of time
#The magnetic flux through the coil is expressed as:
Where:
N- number of circular loops
A-is the Area of each loop(
)
B-is the magnetic strength of the field.
- is the angle between the direction of the magnetic field and the normal to the area of the coil.
=0.0250T/s is given as rate at which the magnetic field increases.
#Substitute in the emf equation:
Hence, the induced emf is
