ANS Lab 02_Charge_Force_Field_v1

The electric field between two square metal plates is 150 N/C. The plates are 1.9 m on a side and are separated by 4.8 cm , as in the figure (Figure 1). Part A What is the charge on each plate? Neglect edge effects. Express your answer using two significant figures. nC Submit Request Answer Figure 1 of 1 Provide Feedback

3. A positive charge of magnitude q, is shown at the right. Points B and C are a distance ro from the charge and point A is a distance 2r. from it. Let WAB represent the work done by an external agent in moving a small test charge from point A to point B. a. Use an arrow to indicate the direction of the electric field at points A, B, and C. X A X B X C qo b. Would the absolute value of the work done by an external agent in moving the same test charge from point B to point C be greater than, less than, or equal to WAB? Explain. c. Would the absolute value of the work done by an external agent in moving the same test charge from point A to point C be greater than, less than, or equal to WAB? Explain.

1.How do you determine the electric force F experienced by a test charge +q in the presence of an electric field E? 2. Now, suppose the charge in No. 1 is made to move at constant velocity from point A to point B against the direction of E. Determine the magnitude of the force F2 that must be applied to carry this out. 3. Write down the expression for the infinitesimal work done in moving the charge +q from point A to some other displacement towards point B at constant velocity against E.

1. Find the magnitude and direction of the electric field at the point (a, a), produced by the 3 charges located at the vertices of a square of side a, as shown in the figure. 2. Represent again the electric field but now using a unit vector. The deliverable must include: The formulas used The free body force diagram Complete procedures Express the force in vector notation. Also express the force in magnitude and direction format Use the correct physical units y +q +q a Ē(a, a) = ? +q X

7. Pull the required charges to obtain the arrangements shown below (one at the time). Use the superposition principle and: a. Draw the net electric field at the position of the E-field sensor. b. Write an expression for the net electric field at the position of the E-field sensor (show all your work). c. Find the magnitude and direction of the net electric field at the position of the E-field sensor (click on "show numbers" and verify your answers Note all charges are fixed at the grid, and 1 box = 0.1 m.

8. Pull the required charges to obtain the arrangements shown below (one at the time). Use the superposition principle and: a. Draw the net electric field at the position of the E-field sensor. b. Write an expression for the net electric field at the position of the E-field sensor (show all your work). c. Find the magnitude and direction of the net electric field at the position of the E-field sensor (click on "show numbers" and verify your answers Note all charges are fixed at the grid, and 1 box = 0.1 m. Lab I: Charges & Fields

An electric field É = (1.7×105 N/C, right ) causes the 5.0 g ball in (Figure 1) to hang at a 20° angle. Part A What is the charge on the ball? Express your answer in nanocoulombs. να ΑΣφ nC Submit Request Answer Provide Feedback Figure 20° 5.0 g

Learning Task 3: Problem Solving Directions: Read and analyze the problems below. Solve for what is asked. Make sure to follow G-A-S format shown in the previous examples. 1. Calculate the electric field strength from a 1.25x10-8C charge if the test charge is placed 2.50x10-Sm.

Description Solve the following problems. Show your complete solution. You can answer it through a paper, take a photo and send here, or you can answer using MS Word equation option and send the file. 1. A +2nC charge is in a 200ON/C electric field. Find the electrostatic force on the charge.

Please explain the phenomenon in paragraph form using these guide questions. Reminder: Your answer will consist of one to two whole paragraphs and do not answer the following questions one at a time since these are only GUIDE questions. a. Explain the two possible scenarios wherein the negative test charge moves in the opposite direction of the horizontal electric field. 2. For each scenario in letter a, if there is one positive linear charge and one negative linear charge included in the system, locate whether the positive and the negative linear charges are at the left or at the right side of the horizontal electric field. 3. Is the movement of the negative test charge in accordance to its natural response when it enters the electric field or not? Meaning, is the negative test charge goes to the positive linear charge and away from the negative charge or does it have an opposite reaction?

Two 3.0 g spheres on 1.0-m-long threads repel each other after being equally charged, as shown in (Figure 1). Figure 3.0 g My Research Fo. 1.0 m/20° 20° 1.0 m 9 1 of 1 3.0 g Part A What is the charge q? Express your answer in nanocoulombs. q= [15] ΑΣΦ Submit Request Answer < Return to Assignment Provide Feedback ? nC

B. Practice Task 2. Using the Triboelectric Series, predict the charges of each object in the descriptions below. 1. a rubber balloon rubbed against human hair 2. a glass rod is rubbed with wool 3. polypropylene book cover rubbed against pieces of paper

EL1: Some electronic devices are easily damaged if they are covered in excess charge. Imagine you have a box full of these devices. Left as is, they can get jostled and accumulate excess charge. Sketch a picture showing how you would store these devices so that they would be safe from excess charges (include any charges or electric field vectors you think are important to describe how it works). Explain how your system protects them, using reasoning from what you’ve learned in class.

3. Use the following diagram to answer the following: a. What is the work done by the electric force to move a 5 C charge from A to B? -2V PA -4V b. What is the work done to move the 5 C charge from B to C? C. On the diagram draw the Electric Field vector at point D. d. If you release a proton from rest at position D and it follows a path that takes it through position A, what will be the kinetic energy of the proton at position A?

Directions: Solve for the given problems. Show your complete solutions. Round off your answers into 3 significant figures. 2. A negatively-charged oil drop weighs 9.0 x 10-15 N. The drop is suspended in an electric field of 6.0 x 103 N/C.a. What is the charge on the oil drop?b. How many electrons does it carry?

A dust particle has an excess electrical charge of -5.5 μC and a mass of (1* 10^-5 kg) The dust particle is suspended at rest at a distance of 5 cm above a small electrically charged plate.   a. sketch situation b. draw a fore diagram for the dust particle c. determine the electrical charge of the plate d.  Does the answer make sense? How do you know

Use the diagram to answer the following questions. a. State the nature of the charge X and charge Y. b. Using the field diagram state which object, X or Y, had a higher magnitude of charge. Explain your reasoning.

A protein molecule in an electrophoresis gel has a negative charge. The exact charge depends on the pH of the solution, but 30 excess electrons is typical. Part A What is the magnitude of the electric force on a protein with this charge in a 1600 N/C electric field? Express your answer in newtons. F = N Submit Request Answer Provide Feedback

Directions: Solve for the given problems. Show your complete solutions. Round off your answers into 3 significant figures. 3. How far from a -6.4-µC point charge must a 1.8-µC point charge be placed for the electric potential energy to be equal to -0.350 J? 4. 1. A sphere centered at the origin has a radius of 0.200 m. A -4.20-µC charge is on the x-axis at x = 0.500 m. The net flux through the sphere is 400 N·m2/C. Calculate the total charge inside the sphere.