Electric Fields
2 years ago
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14 QuestionsShow answers
  • Question 1
    30 seconds
    Q. In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?
    answer choices
    Right
    Left
    Up 
    Down
  • Question 2
    30 seconds
    Q. Which quantity and unit are correctly paired?
    answer choices
    electric field strength and N/C
    electricity and Coulombs
    electrostatic force and electrons
    electric field strength and E
  • Question 3
    30 seconds
    Q. A point charge Q is far from all other charges. At a distance of 2 m from Q, the electric field is 20 N/C. What is the force a charge of 5 Coulombs feels?
    answer choices
    4 N
    100 N
    40 N
    10 N
  • Question 4
    30 seconds
    Q. Which of the following statements is false about electric field lines
    answer choices
    electric field lines cannot cross
    electric field lines point away from positive charge
    electric field lines are always straight lines
    electric field lines show how a proton would move in an electric field
  • Question 5
    30 seconds
    Q. At which point is the electric field the strongest
    answer choices
    A
    B
    C
    D
  • Question 6
    30 seconds
    Q. At which point is the electric field the weakest?
    answer choices
    A because it is the furthest away
    A because the field lines are further apart
    C because the field lines are further apart
    C  because it is the furthest away
  • Question 7
    30 seconds
    Q. Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____.
    answer choices
    +,+
    +,-
    -,+
    -,-
  • Question 8
    30 seconds
    Q. Consider the electric field lines drawn at the right for a configuration of two charges. Several locations are labeled on the diagram. Which of these shows the ranking in order of weakest to strongest correctly
    answer choices
    A, E, C
    D, E, C
    D, B, A
    A, D, B
  • Question 9
    30 seconds
    Q. An electrostatic force of 2 X 102. newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is
    answer choices
    8 X 102 N/C
    5 N/C
    2 X 10-2 N/C
    50 N/C
  • Question 10
    30 seconds
    Q. It is observed that Balloon A is charged negatively. Balloon B exerts a repulsive effect upon balloon A. Would the electric field vector created by balloon B be directed towards B or away from B and why?
    answer choices
    towards because electric field lines point away from negative charges
    towards because electric field lines point away from positive charges
    away because electric field lines point away from negative charges
    away because electric field lines point toward positive charges
  • Question 11
    30 seconds
    Q. Qand Qare two charges creating an electric field. Based on the electric field lines, we can conclude
    answer choices
    Qand Qare both positive
    Qand Qare both negative
    Qis positive and Qis negative
    Qis negative and Qis positive
  • Question 12
    30 seconds
    Q. Which of the following is a true statement about the electric field between the two plates?
    answer choices
    The field is attractive between the plates and uniform in strength
    The field is repulsive between the plates and uniform in strength
    The field is attractive between the plates and strongest near the positive
    The field is repulsive between the plates and strongest near the positive
  • Question 13
    30 seconds
    Q. The electrical force between charges is strongest when the charges are
    answer choices
    close together
    far apart
     the electric force is constant everywhere.
    there is no pattern
  • Question 14
    30 seconds
    Q. What is the magnitude of the electric field intensity at a point where a proton experiences an electrostatic force of magnitude 2.30 x 10-25 newton?
    answer choices
    1.44 x 10-6 N/C
    3.68 x 106 N/C
    1.44 x 1044 N/C
    3.68 x 10-44 N/C
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