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Physics
Physics
Problem
Calculate the magnitude of the electrostatic force between charges
+
2
μ
C
+2\,\mu\text{C}
+
2
μ
C
and
+
3
μ
C
+3\,\mu\text{C}
+
3
μ
C
placed
30
cm
30\,\text{cm}
30
cm
apart in air. [
k
=
9
×
10
9
N
m
2
/
C
2
k = 9 \times 10^{9}\,\text{N}\,\text{m}^2/\text{C}^2
k
=
9
×
1
0
9
N
m
2
/
C
2
]
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