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Question
Physics
Electric potential at any point V=-5 x+3 y+√15 z then the magnitude of the electric filed is
Q. Electric potential at any point
V
=
−
5
x
+
3
y
+
15
z
then the magnitude of the electric filed is
2840
215
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A
3
z
17%
B
4
z
25%
C
5
z
33%
D
7
25%
Solution:
E
=
−
∂
x
∂
v
i
^
−
∂
y
∂
v
j
^
−
∂
z
∂
v
k
^
E
=
5
i
^
−
3
j
−
15
k
^
E
=
25
+
9
+
15
=
7
N
C
−
1