Given the two charged particles shown in the figure below, find the electric field at the origin. (Let q₁ = -26.00 nC and 92 = 9.00 nC. Express your answer in vector form.) 7 = N/C -4 92 -2 y (cm) 4 2 91 2 4 x (cm)

Charge q1 = -10 nC is located at the point (x = 0 cm, y = 3 cm), and a second charge, q2 = 10 nC is at the point (x = 4 cm, y = 0 cm). A third charge, q3 = +10 nC is located at the origin (x = 0 cm, y = 0 cm).  3.1. CALCULATE the NET Electric FIELD at Point, P1. (both magnitude and direction) Hint: Present your answer in the following steps (i)  Pictorial representation of the charges. Identify the point of interest and circle it (ii) Physical representation. Draw a labeled vector-diagram at the Point of interest. (Write down all the other relevant angles). (iii) Mathematical representation. Calculate the magnitudes of Electric Field and Use the unit vector with a diagram to determine the direction of the ne Electric Field. (iv) Calculate the NET Electric FIELD at Point P (both magnitude and direction).                                                                                                                  3.2. How much work was done to assemble the three charges? (Hint: Same…

For the configuration shown in the figure below, suppose a = 5.00 cm, b = 20.0 cm, and c = 25.0 cm. Furthermore, suppose the electric field at a point 18.0 cm from the center is measured to be 3.45  103 N/C radially inward and the electric field at a point 50.0 cm from the center is of magnitude 159 N/C and points radially outward. From this information, find the following. (Include the sign of the charge in your answer.)

Calculate the magnitude of the electric field at the center of a square 42.5 cm on a side if one corner is occupied by a -38.3 μC charge and the other three are occupied by -27.3 μC charges. Express your answer to three significant figures and include the appropriate units. E = HÅ Value Units ?