Consider the following. y 0500 mm C >.\\' i (a) Red blood cells often become charged and can be treated as point charges. Healthy red blood cells are negatively charged, but unhealthy cells (due to the presence of a bacteria, for example) can become positively charged. In the figure, three red blood cells are oriented such that they are located on the corners of an equilateral triangle. The red blood cell charges are A = 2.50 pC, B = 7.40 pC, and C = 4.30 pC. Given these charges, what would the magnitude and direction of the electric field be at cell A? -x magnitude What is the equation for the electric field of a point charge? How do you calculate the net electric field at a certain location? What are the components of the fields due to B and C at A's location? N/C direction \\J/ counterclockwise from the +X axis (b) If the charge of cell A were doubled, how would the electric field at cell A change? 0 The magnitude of the field would be doubled. O The magnitude of the field would be quadrupled. O The magnitude of the field would be halved. The field would be unchanged