Review Coulomb's Law in your text. Suppose a small ball has charge -3.8 PC is located at the origin, and a second small ball has charge 8.0 PC is located along the x-axis at +7.5 cm. if you need more help, try this (a) What is the x-component of the force on the ball at the origin? Be sure to use the correct sign to represent the direction of the component, for "to the right",- for "to the left. 46 64 N (b) What is the x-component of the force on the ball located at 7.5 cm? 4864N (c) Suppose that the second ball at 7.5 cm has charge -8 PC. In this case, what is the x-component of the force on the ball at the origin? (d) The ball is small if its diameter is much less than the separation of the two bats. In this case a ball with diameter 1 mm would be considered small. Such a ball made of ordinary materials would have a mass of no more than 0.01 g. What would the magnitude of the gravitational force of the earth be on such a ball? (Compare the electric and gravitational forces and you can see why we usually can ignore gravity when electric forces are present.)

Review Coulomb's Law in your text. Suppose a small ball has charge -3.8 PC is located at the origin, and a second small ball has charge 8.0 PC is located along the x-axis at +7.5 cm. if you need more help, try this (a) What is the x-component of the force on the ball at the origin? Be sure to use the correct sign to represent the direction of the component, for "to the right",- for "to the left. 46 64 N (b) What is the x-component of the force on the ball located at 7.5 cm? 4864N (c) Suppose that the second ball at 7.5 cm has charge -8 PC. In this case, what is the x-component of the force on the ball at the origin? (d) The ball is small if its diameter is much less than the separation of the two bats. In this case a ball with diameter 1 mm would be considered small. Such a ball made of ordinary materials would have a mass of no more than 0.01 g. What would the magnitude of the gravitational force of the earth be on such a ball? (Compare the electric and gravitational forces and you can see why we usually can ignore gravity when electric forces are present.)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

RC-2 A half ring of charge lies in the x-z plane with its center at the origin as shown to the right. There are λ coulombs per meter of charge evenly distributed along the ring, which has radius 'a'. a) Sketch on your paper figures like the figures shown to the right. On your figures show an arrow representing the electric field at the point P that is produced by source charge element dq. b) Use Coulomb's law to calculate the magnitude of the x, y and z components of the total electric field at P due to the half ring of charge. If any component is equal to zero, you may use the symmetry argument to explain why it is zero instead of doing the calculations. 3D view: ZI (C/m) X dq b View looking from point P toward the origin: Z dq 0
2000Lbs 30° 60° y A' \ B The bar OA is fully constrained at O and attached to the cable AB. The bar length is 20', and it forms a 30° angle with the z-axis and its projection on the x– y plane forms a 60° angle with the x-axis. The point B is prescribed by the coordinates (8',16',0). If the force in the cable is 2000Lbs, what is the moment of this force about O? What is the moment of the 2000Lbs force about the axis OÁ.
A wire of charge Q1 is bended into the shape of a semicircular wire of radius R, and located in a two dimensional xy-coordinate system as shown in the figure. A point charge of Q2 is located at (0, R/4.3) in this coordinate system. What is Q2/Q1 if the electric potential at point O is zero? Provide your answer with two decimal place. Q1 R
Given the image below, what is the summation of moments about the x axis?
RC-2 A half ring of charge lies in the x-z plane with its center at the origin as shown to the right. There are λ coulombs per meter of charge evenly distributed along the ring, which has radius 'a'. a) Sketch on your paper figures like the figures shown to the right. On your figures show an arrow representing the electric field at the point P that is produced by source charge element dq. I TI Cul 3D view: zl (C/m) X a b View looking from point P toward the origin: y
Suppose the force F 5i + 0.5j N moves an object 8 meters in the direction of the positive x-axis. Calculate the work done. =
Given three vectors A = 24i + 33j, B = 55i - 12j and C = 2i + 43j (a) Find the magnitude of each vector. (b) Write an expression for the vector difference A - C. (c) Find the magnitude and direction of the vector difference A-B. (d) In a vector diagram show yector A+B, and A - B, and also show that your diagram agrees qualitatively with your answer.
B. Figure 2 below shows a 400 N force, F, acting on a pipe. 4m F-400N 6m 4m Figure 2 i. Find the position vector of roA and TAB ii. Find the unit vector of OA and AB iii. Determine the component of F acting along the pipe, OA.
Two forces were acting together on a certain point (point e) in a mechanical system; force L and force M. The magnitude of force L is (0.2 N), and on a 2D plane force L is directed from point (–2, –3) to (0,1). The magnitude of force M is (0.5 N), and on a 2D plane force M is directed from point (–4, 2 ) to (2, 2). Solve the following: a) Find the unit vectors of both force L and force M, represent them in terms of the unit vectors î and ſ. b) Find the vector representations of force L and force M in terms of the unit vectors î, and ĵ. c) Find the vector representation of the resultant force acting on point e, represent the net force using the unit vectors î, and ĵ. d) Determine the work done by the resultant force, F, in moving an object through a displacement r=1 î+2ĵm. Show your full analytical solution to all parts.
a = 1.2 m b = 1.8 m C = 4 m Force AB = 500 Newtons B a FAB Find the Length of AB in m.
For the forces F and G, where: F is a force of magnitude 25N acting in direction i - 4j + 8k G is a force of magnitude 70 N acting in direction 2i + 3j - 6k (A) If G acts at the point (5, 2, 3), calculate the magnitude of the vector moment of G about the point (6,7, 25). Give your answer to two decimal places. (B) Calculate the magnitude R of the resultant force R = F + G. Give your answer in N, to two decimal places.
Magnitude of Vectors in 3D Let a = (2,-4, 6). Find a.