Explanation:
It is given that,
Distance, r = 3.5 m
Electric field due to an infinite wall of charges, E = 125 N/C
We need to find the electric field 1.5 meters from the wall, r' = 1.5 m. Let it is equal to E'. For an infinite wall of charge the electric field is given by :
It is clear that the electric field is inversely proportional to the distance. So,
E' = 291.67 N/C
So, the magnitude of the electric field 1.5 meters from the wall is 291.67 N/C. Hence, this is the required solution.
Magnetic flux density - It is the force acting per unit current per unit length on a wire placed to magnetic field at right angle.
It is denoted by B
unit of B is tesla (T)
The total no. of magnetic field lines passing through a area is called magnetic flux.
Magnitude of the magnetic flux - It is equal to the area of the surface and having perpendicular direction to the plane of the surface.
Its unit is weber (Wb)
Direction to the magnetic flux density - The direction is north pole to the south pole.
The magnetic field lines are known as lines of magnetic flux.
flux lines are not in direction of force but perpendicular.
To know more about magnetic flux density:
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<span>Joule was educated at home with private tutors. He had to take over the brewery at a young age and missed out on attending university. Despite this, his home schooling was exceptional and led to him continuing to study science in a home based laboratory where he experimented before and after work. Joule submitted his work on the relationship of heat, electricity and mechanical work to numerous publications but it was widely ignored until William Thomson found it in 1847. He recognized Joule's work worked with an unifying pattern that was newly emerging in physics and excitedly endorsed it. Soon many other big names in the science field began rallying behind Joule's work.</span>
