May someone help me with these physics questions? I missed the class that we went over this and I'm very confused.

In each figure, two charges are fixed in place on a grid, and a point near those particles is labeled P. All of the charges are the same size, Q, but they can be either positive or negative. A B C D + Q P P +Q + +Q P X O X O X O O O X Rank the magnitude of the electric field at point P. OR 2 4 All All Cannot Greatest Least the same zero determine Explain your reasoning.Points P. R. S. and T lie close 10 a positive point charge. The concentric circles shown are equally spaced with radii ol' r. 2r. 3r, and 4r. The magnitude of the electric eld at point P due to the point charge is shown in the bar chart below. Complete the bar chart to indicate the relative magnitude of the electric eld at points R, S, and T. Magnitude of electric eld Explain your reasoning. Given below are seven arrangements of two electric charges. In each figure, a point labeled P also identified. All of the charges are the same size, Q, but they can be either positive or negativ The charges and point P all lie on a straight line. The distances between adjacent items, eith between two charges or between a charge and point P, are all x cm. There is no charge at poi P, nor are there any other charges in this region. Rank these arrangements from strongest to weakest on the basis of the strength (magnitude) the electric field at point P. That is, put first the arrangement that produces the strongest field point P, and put last the arrangement that produces the weakest field at point P. A B C D P P *O O X X E F G P X +