Please answer questions 2-6

Questions: 2. Sketch qualitively the electric field lines and equipotential lines for a system of 2 equal positive point charges and 2 equal negative point charges. 3. Is it possible for two equipotential lines to cross? Explain. 4. Why are the equipotential lines near conductor surfaces parallel to the surface itself? 5. Three point charges -q, +q and - q are placed on the straight line and separated by equal distances. Make a qualitative sketch of the electric field lines produced by these charges. 6. A negative charged rod of finite length carries charge with uniform charge per unit length Sketch the electric field lines in a plane containing the rod