Concept explainers
(a)
An expression for the electric field in the radial region r
Answer to Problem 89QAP
An expression for the electric field in the radial region r
Explanation of Solution
Given:
Radius of inner sphere,
Surface Charge density for inner sphere,
Radius of outer sphere,
Surface Charge density for outer sphere,
Formula used:
The electric force is given by,
Where,
Calculation:
The sphere is conducting. The charge enclosed by the sphere is zero. Thus, the electric field inside the sphere is zero.
(b)
An expression for the electric field in the radial region Ri
Answer to Problem 89QAP
An expression for the electric field in the radial region Ri
Explanation of Solution
Given:
Radius of inner sphere,
Surface Charge density for inner sphere,
Radius of outer sphere,
Surface Charge density for outer sphere,
Formula used:
The electric force is given by,
Where,
r=Distance
Calculation:
The electric force is given by,
But,
It is directed outside from the sphere.
(c)
An expression for the electric field in the radial region r>Ro.
Answer to Problem 89QAP
An expression for the electric field in the radial region r>Rois,
Explanation of Solution
Given:
Radius of inner sphere,
Surface Charge density for inner sphere,
Radius of outer sphere,
Surface Charge density for outer sphere,
Formula used:
The electric force is given by,
Where,
r=DistanceCalculation:
The electric field is given by,
But,
And
The electric field is given by,
If the value of
If the value of
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Chapter 16 Solutions
COLLEGE PHYSICS,VOLUME 1
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