An electric field `vecE = vec(i20 + vecj30 ) NC^(-1)` exists in the space. If the potential at the origin is taken to be zero find the potential at (2m, 2m).

Explanation

`V_(0 ,0) - V_(1 ,2) = -int_(1 , 2)^(0,0) vec(E ) . D vec( r) = - int_(1)^(0) E_(x) dx`
`= - int_(1)^(0) 20 dx = - 20|(x^(2))/(2)|_(0)^(t)`
`= -20( 0 -(1^(2))/(2)) = 10`
`V_(0,0) - 0 = 10`
`V_(0,0) = 10` volt