The flux and potential functions due to a line charge and due to two concentric circular conductors are of the following form

• A. Concentric circular equipotential lines and straight radial flux lines
• B. Concentric circular flux lines And straight equipotential lines
• C. Equipotentials due to line charge are concentric cylinders and equipotentials due to two conductors are straight lines
• D. Equipotentials due to line charge are straight flat surfaces and those due to two conductors are concentric cylinders