Item 7 Learning Goal: To understand the nature of electric fields and how to draw field lines Electric field lines are a tool used to visualize electric fields. A field line is drawn beginning at a positive charge and ending at a negative charge. Field lines may also appear from the edge of a picture or disappear at the edge of the picture. Such lines are said to begin or end at infinity. The field lines are directed so that the electric field at any point is tangent to the field line at that point. Part C Which of the following panels (labelled A, B, C, and D) in (Figure 3) shows the correct electric field lines for an electric dipole? O A Ов O C OD Submit Part D Request Answer In (Eigure 3), what is wrong with panel D? (Pick only those statements that apply to panel D.). Check all that apply. Field lines cannot cross each other. The field lines should turn sharply as you move from one charge to the other. The field lines should be smooth curves. The field lines should always end on negative charges or at infinity.

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Item 7
Learning Goal:
To understand the nature of electric fields and how to draw field lines.
Electric field lines are a tool used to visualize electric fields. A field line is
drawn beginning at a positive charge and ending at a negative charge. Field
lines may also appear from the edge of a picture or disappear at the edge of
the picture. Such lines are said to begin or end at infinity. The field lines are
directed so that the electric field at any point is tangent to the field line at
that point.
Figure
B
D
MNM
3 of 4
Part C
Which of the following panels (labelled A, B, C, and D) in (Figure 3) shows the correct electric field lines for an electric dipole?
O
A
B
Submit
Part D
In (Figure 3), what is wrong with panel D? (Pick only those statements that apply to panel D.)
Check all that apply.
Request Answer
Field lines cannot cross each other.
The field lines should turn sharply as you move from one charge to the other.
The field lines should be smooth curves.
The field lines should
Submit
Part E
Request Answer
end on negative charges or at infinity.
QA=+q, QB =-q
QA+7q, QB = −3q
QA = +3q, QB = -7q
QA-3q, QB = +7q
QA-7q, QB = +3q
7 of 15
Review
In (Figure 4), the electric field lines are shown for a system of two point charges, QA and QB. Which of the following could represent the magnitudes and signs of QA and QB?
In the following, take q to be a positive quantity.
Transcribed Image Text:Item 7 Learning Goal: To understand the nature of electric fields and how to draw field lines. Electric field lines are a tool used to visualize electric fields. A field line is drawn beginning at a positive charge and ending at a negative charge. Field lines may also appear from the edge of a picture or disappear at the edge of the picture. Such lines are said to begin or end at infinity. The field lines are directed so that the electric field at any point is tangent to the field line at that point. Figure B D MNM 3 of 4 Part C Which of the following panels (labelled A, B, C, and D) in (Figure 3) shows the correct electric field lines for an electric dipole? O A B Submit Part D In (Figure 3), what is wrong with panel D? (Pick only those statements that apply to panel D.) Check all that apply. Request Answer Field lines cannot cross each other. The field lines should turn sharply as you move from one charge to the other. The field lines should be smooth curves. The field lines should Submit Part E Request Answer end on negative charges or at infinity. QA=+q, QB =-q QA+7q, QB = −3q QA = +3q, QB = -7q QA-3q, QB = +7q QA-7q, QB = +3q 7 of 15 Review In (Figure 4), the electric field lines are shown for a system of two point charges, QA and QB. Which of the following could represent the magnitudes and signs of QA and QB? In the following, take q to be a positive quantity.
Figure
QA
QB
< 4 of 4
>
Transcribed Image Text:Figure QA QB < 4 of 4 >
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