Three originally uncharged infinite parallel planes are arranged as shown. Then the upper plate has surface charge density σ placed on it while the lower plate receives surface charge density −σ. The net charge induced on the center plate is
A) 0.
B) −σ/2.
C) +σ/2.
D) −σ.
E) +σ.

Question

Three originally uncharged infinite parallel planes are arranged as shown. Then the upper plate has surface charge density σ placed on it while the lower plate receives surface charge density −σ. The net charge induced on the center plate is 
A) 0. 
B) −σ/2. 
C) +σ/2. 
D) −σ. 
E) +σ.

Quizplus · Accepted Answer

The Answer of Three originally uncharged infinite parallel planes are arranged as shown. Then the upper plate has surface charge density σ placed on it while the lower plate receives surface charge density −σ. The net charge induced on the center plate is 
A) 0. 
B) −σ/2. 
C) +σ/2. 
D) −σ. 
E) +σ.

Three Originally Uncharged Infinite Parallel Planes Are Arranged as Shown