Electric field lines direction and shape near charged conductors

Steps:

• Identify positive charge on flat plate: field lines emerge perpendicular to its surface.
• Identify negative charge on curved plate: field lines terminate perpendicular to its surface, bending due to curvature.
• Trace lines from flat to curved plate: they start straight from flat plate and curve inward toward concave negative surface.
• Match to diagram: select option showing perpendicular exit from flat, curving entry to curved plate.

Why C is correct:

• Diagram C depicts lines originating perpendicular from positive flat plate and terminating perpendicular on negative curved plate, following Gauss's law for field direction from positive to negative.

Why the others are wrong:

• A shows lines parallel between plates, ignoring curvature effects.
• B has lines starting from curved plate, reversing charge polarity.
• D shows lines curving outward from curved plate, contradicting perpendicular termination on conductors.

Final answer: C