Electric Fields
AP Physics C Electricity and Magnetism · Flashcards · Application
AP PHYSICS C ELECTRICITY AND MAGNETISM · FLASHCARDS
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QUESTION
Find the electric field magnitude 1 m away from a
1
C
1 \text{ C}
1
C
point charge.
QUESTION
Find the electric field at a point
3
m
3 \text{ m}
3
m
away from a
2
C
2 \text{ C}
2
C
charge.
QUESTION
Find the electric field magnitude 1 m away from a
1
C
1 \text{ C}
1
C
point charge.
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ANSWER
E
=
9
×
10
9
N/C
E = 9 \times 10^9 \text{ N/C}
E
=
9
×
1
0
9
N/C
. Using
E
=
k
q
r
2
E = \frac{kq}{r^2}
E
=
r
2
k
q
with
k
=
9
×
10
9
k = 9 \times 10^9
k
=
9
×
1
0
9
.
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