Concept explainers
(a)
An expression for the electric field in the region x>0.
Answer to Problem 90QAP
An expression for the electric field in the region x>0 is,
Explanation of Solution
Given:
Charge,
Charge,
Distance, r
Formula used:
The electric force is given by,
Where,
r=Distance
Calculation:
The electric force is given by,
As charge 1 is placed at origin and charge 2 is placed at a distance a from origin. So, charge 1 is at distance x from reference point and charge 2 is at distance x+a from reference point.
(b)
An expression for the electric field in the region 0
Answer to Problem 90QAP
An expression for the electric field in the region 0
Explanation of Solution
Given:
Charge,
Charge,
Distance, r
Formula used:
The electric force is given by,
Where,
r=DistanceCalculation:
The electric force is given by,
Thus,
(c)
An expression for the electric field in the region x>a.
Answer to Problem 90QAP
An expression for the electric field in the region x>a is,
Explanation of Solution
Given:
Charge,
Charge,
Distance, r
Formula used:
The electric force is given by,
Where,
r=Distance
Calculation:
The electric force is given by,
Thus,
(d)
The point at which the electric field is zero.
Answer to Problem 90QAP
At
Explanation of Solution
Given:
Charge,
Charge,
Distance, r
Formula used:
The electric force is given by,
Where,
r=Distance
Calculation:
The electric force is given by,
Thus,
(e)
To plot:
The graph of Exverses x.
Explanation of Solution
Formula used:
The electric force is given by,
Where,
r=Distance
The electric force is given by,
(f)
An expression for the electric field in the region -8
Answer to Problem 90QAP
An expression for the electric field in the region -8
Explanation of Solution
Given:
Charge,
Charge,
Distance, r
Formula used:
The electric force is given by,
Where,
r=Distance
Calculation:
The electric force is given by,
Thus,
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Chapter 16 Solutions
COLLEGE PHYSICS
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