An electric dipole is made of 18 nC charges separated by 1.0 mm.

a) What is the electric potential 25 cm from the dipole at angle of 0 from the direction of the dipole moment vector?

b) What is the electric potential 25 cm from the dipole at angle of 45 from the direction of the dipole moment vector?

c) What is the electric potential 25 cm from the dipole at angle of 90 from the direction of the dipole moment vector?