Answer:
N = 25795 loops
Explanation:
The magnetic field of a solenoid can be calculated by using the following formula:
where,
N = No. of loops = ?
B = Magnetic Field = 0.78 T
L = Length of solenoid = 32 cm = 0.32 m
I = Current = 7.7 A
μ = permeability of free space = 4π x 10⁻⁷ N/A²
Therefore,
<u>N = 25795 loops</u>
Answer: D) The convective zone
Explanation: The Sun's convective zone rapidly mixes plasma within the Sun due primarily to heat transfer by convection. Convection is also the main mode of heat transfer within a pot of boiling water. So boiling water could be used to model the convective zone.
The force between the two particles will quadruple
Explanation:
The magnitude of the electrostatic force between two charges is given by Coulomb's law:
where:
is the Coulomb's constant
are the two charges
d is the separation between the two charges
In this problem, let's call F the initial force between the two charges, when they are at a distance of d.
Later, the distance between the two particles is halved, so the new distance is:
This means that the new electrostatic force will be:
Therefore, the force between the two particles will quadruple.
Learn more about electrostatic force:
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Answer:
Law of conservation of energy.
<em>Hope it helps</em><em>.</em>