Gravitational force between sun and planet is given by,
Thus, The force of gravitation is inversely proportional to the distance.
Kepler's law states that the square of period of planet is proportional to cube of semi major axis of its orbit.
The time period of planet is more when the gravitational force is less.
Thus, planet Y is closer to earth because sun exert greater gravitational force than planet Z.
Answer:
The magnetic field is 24.2 mT.
Explanation:
The magnetic field can be calculated with the following equation:
Where:
i: is the current = 5.57 A
N: is the number of turns = 5*850 turns (it is five close-packed)
L: is the length = 1.23 m
: is the permeability = 4π*10⁻⁷ T*m/A
Hence, the magnetic field is:
Therefore, the magnetic field is 24.2 mT.
I hope it helps you!
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