If the constant electric field between two parallel metal plates separated by 10 cm is given to be 90 N/C, which of the

[answerhappygod]

If the constant electric field between two parallel metal platesseparated by 10 cm is given to be 90 N/C, which of the followingstatements is true?
9 joules of energy is needed to move an electron from thepositive plate to the negative plate.
9 joules of energy is needed to move a proton from the negativeplate to the positive plate.
9 joules of energy is needed to move a positive charge of 1coulomb from the negative plate to the positive plate.
The voltage across the plates is 4.5 V.
Both c and d are true