Question

4) An electric dipole (q=3.2x10-19C and d=4.00x106m) is placed a distance b=1.00 cm from a large sheet of charge (o=+3.00x10-9C/m2) as shown large sheet (1 to page) + a) Find the E-field created by the large sheet. + + b + b) Draw some E-field lines near the dipole + c) What is the initial potential energy of the dipole? d) Draw the individual charges of the dipole and use it to explain if the the dipole turn clockwise or counterclockwise when it is released e) How could you orient the dipole so that it has a potential energy of O J?

Answer 1

The electric dipole in electric field

The electric field is geven as - E = E = 34109 2x8-8 5xið 1 2 E = 0'1695 x 10 TE= 169.5 m / Electric field > lines potential energy U = -P. Ecoso U = -3.2 X10-19 x uxio-box 169.5 (08630) u= -1 8 7 8 8 x 10-25 FU = - 10 8 8 x 10-22 J

(a) It will Clock cou're sulate >= 9€ F=9€ Potential enessy Uz - Pecolo at o=90° Coso zo so Potential energy is zero So asiented it at goo from Horizontal .