Question

Due this Friday, Feb 1 at 11:59 pm (EST The figure belows shows two parallel plates. Assume they are infinite in area (this way we can neglect edge effects). The plate on the lfis a a potential of +48V and the plate on the right is at a potential of 0V. The plates are a distance 24cm apart and the dashed lines are spaced equally 6cm apart. L. Evaluate the following statements appropriately: less than: The electric potential energy of a proton at point C is less than: The electric potential at point C ist equal to: The electric potential at point A is less than: The electric potential energy of an electron at point A is the electric potential energy of an electron at point C the electric potential energy of an proton at point A the electric potential at point B. the electric potential at point D ou are correct. Your receipt no. is 164-7951 What is the electric potential at point C? Submit Answer What is the magnitude of the electric field at point C? 266.vIm Tries 6/10 Previous Tries Submit Answer Tries 1/10 Previous Tries

Answer 1

2) Since the plates are infinite, the electric field between them is constant and therefore the electric potential is given by

V(x)=-Ex+V_o

Starting from left,

V_o=48V.

E=- {V_{b}-V_a}/{x}

E=-{(0V)-(48V)}/{(0.24m)}

E= 200 N/C

And from the left plate to D is 0.06 m, then

V_C=-Ex+V_o

V_C=-(200N/C)(0.18m)+(48V)

V_C= 12 V

3) the electric field is constant between the plates. The Electric field at C is

E_C=200 N/C