Potential: If the electric potential at a point in space is zero, then the electric field at that point must be

Electric intensity will not necessarily be zero

Explanation:

E=−dV/dl

where E= Electric field intensity

V= Electric Potential ;

l= distance traveled in direction of electric field

Electric intensity at a point is the negative of rate of change of the electric potential at a point. So if a function is zero at a given point, the slope will not necessarily be zero at that point.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2