CHAPTER 15 REVIEW QUESTIONS 1 A suspended object A is attracted to a neutral wall It s also attracted to a positively charged object B Which of the following is true about object A 2 Object A has a charge of 2 C and object B has a charge of 6 C Which statement is true 3 A test charge of 3 C is at a point P where the electric field due to other charges is directed to the right and has a magnitude of 4 x 10 6 N C If the test charge is replaced with a 3 C charge the electric field at P 4 A circular ring of charge of radius b has a total charge q uniformly distributed around it Choose the magnitude of the electric field at the center of the ring 5 A free electron and a free proton are placed in an identical electric field Is the following statement true or false Each particle is acted upon by the same electric force and has the same acceleration 6 A free electron and a free proton are placed in an identical electric field Is the following statement true or false The electric force on the proton is greater in magnitude than the electric force on the electron but in the opposite direction 7 A free electron and a free proton are placed in an identical electric field Is the following statement true or false The electric force on the proton is equal in magnitude to the electric force on the electron but in the opposite direction 8 A free electron and a free proton are placed in an identical electric field Is the following statement true or false Both particles have the same acceleration 9 Rank the magnitude of the electric field at points A B and C in the figure below largest magnitude first 10 Calculate the magnitude of the flux of a constant electric field of 5 00 N C in the z direction through a rectangle with area 4 00 m2 in the xy plane 11 Calculate the magnitude of the flux of a constant electric field of 5 00 N C tilted 60 away from the positive z direction through a rectangle with area 4 00 m2 in the xy plane 12 Find the electric flux through the surface in the figure below 13 For a closed surface through which the net flux is zero each of the following four statements could be true Which of the statements must be true There may be more than one a There are no charges inside the surface b The net charge inside the surface is zero c The electric field is zero everywhere on the surface d The number of electric field lines entering the surface equals the number leaving the surface
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