what is the general procedure for these type of questions-what is the effect of -q in this problem...... if a geometrical figure is given and a point charge q is inside it .then initial flux through curved surface is something(let it be phy.)now another charge -q is placed outside the figure.then how to find the net flux through the curved suface in this situation
what is the general procedure for these type of questions-what is the effect of -q in this problem...... if a geometrical figure is given and a point charge q is inside it .then initial flux through curved surface is something(let it be phy.)now another charge -q is placed outside the figure.then how to find the net flux through the curved suface in this situation