Imagine that we place a spherical shell with a uniformly distributed positive charge $Q$ and a particle with a negative charge $-4 Q$ as shown below. What are the directions of the total electric field vectors at the two points shown?

-(b) What is the direction at point $\mathrm{P}_{2}$ ?
A) A
B) B
C) C
D) D
E) zero
F) other
G) AA
H) BB
I) $\mathrm{CC}$
J) DD

Question

Imagine that we place a spherical shell with a uniformly distributed positive charge $Q$ and a particle with a negative charge $-4 Q$ as shown below. What are the directions of the total electric field vectors at the two points shown?
 
-(b) What is the direction at point $\mathrm{P}_{2}$ ?
A) A 
B) B 
C) C 
D) D 
E) zero 
F) other 
G) AA 
H) BB 
I) $\mathrm{CC}$ 
J) DD

Quizplus · Accepted Answer

At point $P_2$, the direction is zero because this typically indicates a point of equilibrium or a stationary point where the direction or magnitude of a vector quantity (like velocity, force, etc.) is zero.

Imagine That We Place a Spherical Shell with a Uniformly QQQ

Imagine That We Place a Spherical Shell with a Uniformly $Q$