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Physics
Physics
Problem
A charged particle
q
1
q_1
q
1
is at position
(
2
,
−
1
,
3
)
(2, -1, 3)
(
2
,
−
1
,
3
)
. The electrostatic force on another charged particle
q
2
q_2
q
2
at
(
0
,
0
,
0
)
(0, 0, 0)
(
0
,
0
,
0
)
is: (a)
q
1
q
2
56
π
ϵ
0
(
2
i
^
−
j
^
+
3
k
^
)
\frac{q_1 q_2}{56\pi\epsilon_0} (2\hat{i} - \hat{j} + 3\hat{k})
56
π
ϵ
0
q
1
q
2
(
2
i
^
−
j
^
+
3
k
^
)
(b)
q
1
q
2
56
14
π
ϵ
0
(
2
i
^
−
j
^
+
3
k
^
)
\frac{q_1 q_2}{56\sqrt{14}\pi\epsilon_0} (2\hat{i} - \hat{j} + 3\hat{k})
56
14
π
ϵ
0
q
1
q
2
(
2
i
^
−
j
^
+
3
k
^
)
(c)
q
1
q
2
56
π
ϵ
0
(
j
^
−
2
i
^
−
3
k
^
)
\frac{q_1 q_2}{56\pi\epsilon_0} (\hat{j} - 2\hat{i} - 3\hat{k})
56
π
ϵ
0
q
1
q
2
(
j
^
−
2
i
^
−
3
k
^
)
(d)
q
1
q
2
56
14
π
ϵ
0
(
j
^
−
2
i
^
−
3
k
^
)
\frac{q_1 q_2}{56\sqrt{14}\pi\epsilon_0} (\hat{j} - 2\hat{i} - 3\hat{k})
56
14
π
ϵ
0
q
1
q
2
(
j
^
−
2
i
^
−
3
k
^
)
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