Given: vec p = - hati -3 hatj + 2hatk an...

Given: `vec p = - hati -3 hatj + 2hatk` and `vec r = hati + 3 hatj + 5hatk`. Find vector parallel to electric field at position `vec r`. [ Note that `vec p . vec r = 0`]

`(-hati+3hatj-2hatk)`

`(+hati-3hatj-2hatk)`

`(-hati-3hatj+2hatk)`

`(+hati+3hatj-2hatk)`

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