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Charge Q is given by displacement vecr =...

Charge Q is given by displacement `vecr = ahati + bhatj` in an electric field `vecE = E_1hati + E_2 hatj`. The work done is ....

A

`Q (E_1a + E_2b)`

B

`Q sqrt((E_1a)^2 + (E_2b))^2`

C

`Q (E_1 + E_2) sqrt(a^2 +b^2)`

D

`Q (sqrt(E_1^2 + E_2^2) sqrt(a^2 + b^2)`

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