Question

se the following values ifneeded: e 1.6x10-19C; k-9.0x10"Nn? /C" olve the problems below if the location of some points are given as: Point A is at position (-3.0j+4.0k)cm; Point B is at position (4.0k)cm; Point C is at position (3.0i-2j+5.0k)em Point D is at position (-3.0jenm cm. 1. Charges of -4.0 uC and +9.0 pC are at A and B respectively. What is the electric field at point D? 2. Charges of -4.0 uC and+9.0 HC are at A and B respectively. What is the electric potential energy of an electron at D? 3. Charges of -7.5 uC and +3.0 uC are at D and A respectively. What is the electric potential at C, if we take zero potential at infinity?

Answer 1