Answer:
Complete question:
c.If the current in the second coil increases at a rate of 0.365 A/s , what is the magnitude of the induced emf in the first coil?
a.
b.flux through each turn = Ф = 
c.magnitude of the induced emf in the first coil = e= 
Explanation:
a. rate of current changing =
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Induced emf in the coil =e= 
For mutual inductance in which change in flux in one coil induces emf in the second coil given by the farmula based on farady law



b.
Flux through each turn=?
Current in the first coil =1.25 A
Number of turns = 20
using MI = NФ
flux through each turn = Ф = 
flux through each turn = Ф = 
c.
second coil increase at a rate = 0.365 A/s
magnitude of the induced emf in the first coil =?
using 

magnitude of the induced emf in the first coil = e= 
Answer:
wind
Explanation:
this is because the others when burnt releases large amounts of carbon of carbon dioxide as they are carbon based and oxidises when burnt. However wind is renewable and converts the kinetic energy in the wind to electrical energy by the use of a turbine
Answer:
B because the earth rotational axis tilt away from the sun.
H. O is the answer hope this helps
2
Answer:
:)
Explanation:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.