Two Concentric Spheres Are Shown in the Figure

question 26

Essay

Two concentric spheres are shown in the figure.The inner sphere is a solid nonconductor and carries a charge of +5.00 µC uniformly distributed over its outer surface.The outer sphere is a conducting shell that carries a net charge of -8.00 µC.No other charges are present.The radii shown in the figure have the values R₁ = 10.0 cm,R₂ = 20.0 cm,and R₃ = 30.0 cm.(k = 1/4πε₀ = 8.99 × 10⁹ N • m²/C²)
(a)Find the total excess charge on the inner and outer surfaces of the conducting sphere.
(b)Find the magnitude and direction of the electric field at the following distances r from the center of the inner sphere: (i)r = 9.5 cm,(ii)r = 15.0 cm,(iii)r = 27.0 cm,(iv)r = 35.0 cm.

---

Definitions:

Biological Drives

Basic, instinctual processes that motivate organisms to fulfill their needs, such as hunger, thirst, and the need for sleep.

Defense Mechanisms

Methods applied without conscious awareness to safeguard against the unease generated by thoughts or feelings that are not acceptable.

Reaction Formation

is a defense mechanism where an individual unconsciously replaces unacceptable feelings or impulses with their opposites, often seen in behaviors that contradict true feelings.

Convince Others

The process of persuading someone to agree with or believe in a particular point of view or idea.