A MAGNET IS A MATERIAL OR OBJECT THAT PRODUCES A MAGNETIC FIELD
A NATO base in northern Norway is warmed with a heat pump that uses 7.0 °C ocean water as the cold reservoir. Heat extracted fro
1 answer:
You might be interested in
The potential at a distance r from a charge Q is given by
where ke is the Coulomb's constant.
The charge in our problem is
; for the point at 
, the potential is
For the point at infinity, we immediately see that the potential is zero, because
and so 
.
Therefore, the potential difference between the two points is
where ke is the Coulomb's constant.
The charge in our problem is
For the point at infinity, we immediately see that the potential is zero, because
Therefore, the potential difference between the two points is