Concept explainers
(a)
The magnitude and direction of the net electric force on
(a)
Answer to Problem 12P
The direction of net electric force is along negative
Explanation of Solution
Write the expression for electrostatic force.
Here,
The force acting on three charges is shown in Figure (1).
Figure (1)
Write the expression for electric force due to
Here,
Write the expression for electric force due to
Here,
Write the expression for electric force on
Substitute
Conclusion:
Substitute
Therefore, the direction of net electric force is along negative
(b)
The magnitude and direction of the net electric force on
(b)
Answer to Problem 12P
The direction of net electric force is along positive
Explanation of Solution
Write the expression for electric force due to
Here,
Write the expression for electric force due to
Here,
Write the expression for electric force on
Substitute
Conclusion:
Substitute
Therefore, the direction of net electric force is along positive
(c)
The magnitude and direction of the net electric force on
(c)
Answer to Problem 12P
The direction of net electric force is along negative
Explanation of Solution
Write the expression for electric force due to
Here,
Write the expression for electric force due to
Here,
Write the expression for electric force on
Substitute
Conclusion:
Substitute
Therefore, the direction of net electric force is along negative
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Chapter 23 Solutions
Physics For Scientists And Engineers With Modern Physics, 9th Edition, The Ohio State University
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- In Figure P24.49, a charged particle of mass m = 4.00 g and charge q = 0.250 C is suspended in static equilibrium at the end of an insulating thread that hangs from a very long, charged, thin rod. The thread is 12.0 cm long and makes an angle of 35.0 with the vertical. Determine the linear charge density of the rod. FIGURE P24.49arrow_forwardCharges A, B, and C are arranged in the xy plane with qA = 5.60 C, qB = 4.00 C, and qC = 2.30 /C (Fig. P23.43). What are the magnitude and direction of the electrostatic force on charge B? Figure P23.43arrow_forwardA charged cork ball of mass 1.00 g is suspended on a light string in the presence of a uniform electric field as shown in Figure P22.33. When E=(3.00i+5.00j)105N/C, the ball is in equilibrium at = 37.0. Find (a) the charge on the ball and (b) the tension in the string. Figure P22.33 Problems 33 and 34arrow_forward
- Three identical charges (q = 5.0 C.) lie along a circle of radius 2.0 m at angles of 30, 150, and 270, as shown in Figure P15.33 (page 524). What is the resultant electric field at the center of the circle? Figure P15.33arrow_forwardA particle with charge Q = 5.00 C is located at the center of a cube of edge L = 0.100 m. In addition, six other identical charged particles having q = 1.00 C are positioned symmetrically around Q as shown in Figure P23.19. Determine the electric flux through one face of the cube. Figure P23.19 Problems 19 and 20.arrow_forwardA charged cork ball of mass m is suspended on a light string in the presence of a uniform electric field as shown in Figure P22.33. When E=Ai+Bj, where A and B are positive quantities, the ball is in equilibrium at the angle . Find (a) the charge on the ball and (b) the tension in the string. Figure P22.33 Problems 33 and 34arrow_forward
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