Question
Question: Electric field at x = 10 cm is 100 V/m and at x = –10cm is – 100 V/m. The magnitude of charge enclo...
Electric field at x = 10 cm is 100 V/m and at x = –10cm is
– 100 V/m. The magnitude of charge enclosed by the cube of side 20 cm is-
A
8 e0
B
2 e0
C
3 e0
D
5 e0
Answer
8 e0
Explanation
Solution
fTotal =
E.a2 + E.a2 = ̃ 2E.a2 =
2 × 100 × (20 × 10–2)2 =
\ qin =8ε0