Concept explainers
(a)
The magnitude and direction of electric field at
(a)
Explanation of Solution
Given:
The magnitude of the first point charge is
The position of the first point charge is
The magnitude of the second point charge is
The position of the second point charge is
Formula used:
Write the expression for the resultant electric field at point
Here,
Write the expression for the electric field due to charge
Here,
Write the expression for the electric field due to charge
Here,
Calculation:
Substitute
Substitute
Substitute
The Magnitude of electric field is:
Direction of electric field is:
Conclusion:
The magnitude and direction of electric field is
(b)
The magnitude and direction of electric force.
(b)
Explanation of Solution
Given:
The magnitude of the first point charge is
The position of the first point charge is
The magnitude of the second point charge is
The position of the second point charge is
Formula used:
Write the expression for the force.
Here,
Calculation:
Substitute
The magnitude of force is:
The direction of electric force is:
Conclusion:
The magnitude and direction of force is
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Chapter 21 Solutions
Physics For Scientists And Engineers
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