Electrostatic

Consider the three statements in context of electrostatic field lines. STATEMENT-1 : Electrostatic field lines are continuous curves in space. STATEMENTS-2 : Electrostatic field lines are always perpendicular to equipotential surface. STATEMENT-3 : A charge when released in electrostatic field moves along electrostatic field lines.

Match the column {:(,"Column I",,"Column II"),((A),"A stationary positive charge",(p),"Exert electrostatic force on other charge directly"),((B), "A stationary negative charge",(q),"Produces electrostatic field directly"),((C ),"A stationary electrically neutrally object",(r ),"Acceleration in the direction of electrostatic field"),((D),"Electrostatic field",(s),"Accelerates opposite to the direction of electrostatic field"),(,,(t ),"Cannot exert force on itself"):}

Assertion : When two positive point charges move away from each other, then their electrostatic potential energy decreases. Reason : Change in potential energy between two points is equal to the work done by electrostatic forces.

Assertion : Five charges +q each are placed at five vertices of a regular pentagon. A sixth xharge -Q is placed at the centre of pentagon. Then, net electrostatic force on -Q is zero. Reason : Net electrostatic potential at the centre is zero.