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Byju's Answer
Standard VII
Physics
Electric Current
if there are ...
Question
if there are 2 charges q and -q then where does the null point of electric field lines lie? Explain pictorially?
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Q.
Two point charges
−
q
and
+
q
/
2
are situated at the origin and the point
(
a
,
0
,
0
)
respectively. The point along the x-axis, where the electric field vanishes is
Q.
In above shown figure, two positive point charges +Q are kept, P is the midpoint of line segment joining the charges. If at P , the magnitude of the electric field is E due to only one +Q charge then calculate the net electric field at point P.
Q.
A few electric field lines for a system of two charges
Q
1
and
Q
2
fixed at two different points on the
x
−
axis are shown in the figure. These lines suggest that
Q.
Two point charges Q and -2Q are placed at some distance apart. If the electric field at the location of Q is E, then the electric field at the location of -2Q will be
Q.
Figure shows the electric field lines around three point charges
A
,
B
and
C
. Which of the following charges are positive then?
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