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JEE Main 24 Feb 2021 Shift 1 Solved Paper

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Question : 15

Total: 90

A cube of side a has point charges +Q located at each of its vertices except at the origin, where the charge is −Q. The electric field at the centre of cube is

24 Feb 2021 Shift1

‌
−Q
3√3πε0a2
(
∧
x
+
∧
y
+
∧
z
)
‌
Q
3√3πε0a2
(
∧
x
+
∧
y
+
∧
z
)
‌
−2Q
3√3πε0a2
(
∧
x
+
∧
y
+
∧
z
)
‌
2Q
3√3πε0a2
(
∧
x
+
∧
y
+
∧
z
)

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