#7
Given that an electron revolves in a circle and the essential centripetal force is given as
now we need to find its speed
so we know that this force is given as
#8
Here the force due to earth on satellite is the centripetal force to revolve around earth
so we can say that force due to earth is given as
we know that
now from above equation we have
Answer:
Explanation:
The density of the magnetic flux is given by the following formula:
The normal vector A and the vector of the magnitude of the magnetic field are perpendicular, then, the angle is zero:
The magnitude of the magnetic field is calculated by using the formula for B at a distance of x to a point in the plane of the loop:
For x = 0 you have:
R is the radius of the circular loop and its values is:
Then, you replace in the equation for B with mu_o = 4\pi*10^-7 T/A:
and the density of the magnetic flux is