The answer should be 1.6 kilometers.
The magnetic field strength is 17 Weber.
<h3>How can we find the value of magnetic field?</h3>
We know, The magnetic field equation is given by:

<h3>Given,</h3>
Where, we know,
=
= It is the magnetic constant or the permeability of free space.
n = The turn density which is equivalent to number of turns per unit length = 3300 turns per meter = 3300 
I= the amount of current applied to it = 4. 1 kA = 4 ×
A.
We have to find the magnetic field strength = B
Substituting the known values into the equation gives the strength of the magnetic field, which is:


[We know,
]
So, from the above calculation we can see that, The magnetic field strength is 17 Weber.
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Answer:
c. Kinetic energy is conserved in all collisions .
Explanation:
the total kinetic energy of system of particles involved in the collision does changes .
kinetic energy is not conserved in all collisions because in some cases energy is converted to another form of energy that is heat etc .
Answer:
4.73V
Explanation:
Parameters given:
Radius of sphere = 65.7 cm = 0.657 m
Electric field = 7.2 * 10^5 V/m
Electric potential, V, is given in terms of Electric field as:
V = E * r
Where r = distance between charge and point of consideration.
Since we are considering a point just outside the spherical conductor:
V = 7.2 * 10^5 * 0.657
V = 4.73V