Concept explainers
Particle A of charge 3.00 × 10–4 C is at the origin, particle B of charge –6.00 × 10–1 C is at (4.00 m, 0), and particle C of charge 1.00 × 10–4 C is at (0, 3.00 in). We wish to find the net electric force on C. (a) What is the x component of the electric force exerted by A on C? (b) What is the y component of the force exerted by A on C? (c) Kind the magnitude of the force exerted by B on C. (d) Calculate the x component of the force exerted by B on C. (e) Calculate the y component of the force exerted by B on C. (f) Sum the two x components from parts (a) and (d) to obtain the resultant x component of the electric force acting on C. (g) Similarly, find the y component of the resultant force vector acting on C. (h) Kind the magnitude and direction of the resultant electric force acting on C.
(a)
The
Answer to Problem 10P
The
Explanation of Solution
Figure 1 represents the three charges A, B, and C, and the three charges are arranged in such a way that charge C is attracted by charge B, and repelled by charge A.
The distance between charge A and C is
Write the distance between charge C and B from Figure 1.
Write the angle between the horizontal and
Write the expression for component of electric force exerted by charge A on charge C.
Here,
The
Conclusion:
Therefore, the
(b)
The
Answer to Problem 10P
The
Explanation of Solution
The
Write the expression for
Here,
Conclusion:
Substitute
Therefore, the
(c)
The magnitude of electric force exerted by charge B on charge C.
Answer to Problem 10P
The magnitude of electric force exerted by charge B on charge is
Explanation of Solution
Write the expression for electric force exerted by charge B on charge C.
Here,
Conclusion:
Substitute
Therefore, the magnitude of electric force exerted by charge B on charge is
(d)
The
Answer to Problem 10P
The
Explanation of Solution
From subpart (b) the magnitude of force exerted by charge B on charge C is
Write the expression for
Here,
Conclusion:
Substitute
Therefore, the
(e)
The
Answer to Problem 10P
The
Explanation of Solution
From subpart (b) the magnitude of force exerted by charge B on charge C is
Write the expression for
Here,
Conclusion:
Substitute
Therefore, the
(f)
The sum of
Answer to Problem 10P
The sum of
Explanation of Solution
Write the expression for sum of
Here,
Conclusion:
Substitute
Therefore, The sum of
(g)
The sum of
Answer to Problem 10P
The sum of
Explanation of Solution
Write the expression for sum of
Here,
Conclusion:
Substitute
Therefore, the sum of
(h)
The magnitude and direction of the resultant electric force acting on charge C.
Answer to Problem 10P
The magnitude of the resultant electric force acting on charge C is
Explanation of Solution
Write the expression for magnitude of resultant electric force acting on charge C.
Here,
Write the expression for direction of the resultant electric force acting on charge C.
Here,
Conclusion:
Substitute
Substitute
Therefore, The magnitude of the resultant electric force acting on charge C is
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Chapter 19 Solutions
Principles of Physics
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