Answer: a) 112.88 * 10^3 N/C; b) The electric field point outward from the center of the sphere.
Explanation: In order to solve this problem we have to use the gaussian law so we use a gaussian surface at r=0.965 m and the electric flux is equal to Q inside/εo
E* 4*π*r^2= Q inside/εo
E= k*Q inside/r^2= 9*10^9*(6.53+5.15)μC/(0.965)^2=122.88 * 10 ^3 N/C
A ionosphere is a layer of the earths atmosphere that is ionized by solar and cosmic radiation <span />
Answer:
b . Move the conductor near a magnet
Ampere’s law states that the magnetic field of a solenoid
is directly proportional to the current supplied. This is expressed
mathematically as:
B = μ
n I
where,
B = magnetic field
μ = magnetic
permeability
n = number of
turns per length
I = current
<span>Therefore,
increasing the current will increase the magnetic field of a solenoid.</span>