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An electric field vecE=10xhai i exists i...

An electric field `vecE=10xhai i` exists in a certain region of space. Then the potential difference `V=V_(0)-V_(A)` , where `V_(0)` is the potential at the origin and `V_(A)` is the potential at x =2 m is …….. .

A

10 J

B

`-20 J`

C

`+20 J`

D

`- 10 J`

Text Solution

Verified by Experts

The correct Answer is:
B
E = 10x I when x = 2m
`E = 10xx2xxi=20i`
Since `E = (-dV)/(dx) , V =-20vecJ`
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