
(a)
The magnitude of the force on
(a)

Answer to Problem 1SP
The magnitude of the force on
Explanation of Solution
Given Info: The distance between the charges at A and B is
Write the expression to find the electrostatic force.
Here,
Substitute
Conclusion:
Therefore, magnitude of the force on
(b)
The magnitude of the force on
(b)

Answer to Problem 1SP
The magnitude of the force on
Explanation of Solution
Write the expression to find the electrostatic force.
Substitute
Conclusion:
Therefore, magnitude of the force on
(c)
The net force exerted on the
(c)

Answer to Problem 1SP
The net force exerted on the
Explanation of Solution
Write the expression to find the net electrostatic force on charge at B.
Here,
F is the net electrostatic force on charge at B
Consider the right direction to be positive.
Substitute
Since, the net force is negative; the direction of the net force will be in the left direction.
Conclusion:
Therefore, the net force exerted on the
(d)
The direction and magnitude of the electric field at the point B.
(d)

Answer to Problem 1SP
The direction and magnitude of the electric field at point B is
Explanation of Solution
Write the expression to find the electric field.
Here,
q is the charge
Substitute
The direction of the electric field is in the left direction.
Conclusion:
The direction and magnitude of the electric field at point B is
(e)
The direction and magnitude of the electrostatic force exerted on the new charge if the
(e)

Answer to Problem 1SP
The direction and magnitude of the electrostatic force exerted on the new charge if the
Explanation of Solution
Write the expression to find the electrostatic force.
Here,
q is the charge
Substitute
Negative sign indicates the direction of the electrostatic force will be in the right direction.
Conclusion:
Therefore, direction and magnitude of the electrostatic force exerted on the new charge if the
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Chapter 12 Solutions
The Physics of Everyday Phenomena
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