A positively charged glass rod attracts a suspended pith-ball. Does it imply that te pith-ball is negatively charged?

why does a charged glass rod attract a piece of paper?

True or False A charged glass rod attracts a charged plastic straw.

Among the following which is/are correct statement about the metal sulphide sols ? the sol particles are positively charged due to preferential adsorption of metal ions, the sol particles are negatively charged due to preferential adsorption of sulphide ions, the cations of added electrolytes are effective in causing the coagulation of the sol, the sol is due to both the electric charge and hydration of the particles.

A positively charged thin metal ring of radius R is fixed in the xy plane with its centre at the origin O. A negatively charged particle P is released from rest at the point (0, 0, z_0 ) where z_0gt0 . Then the motion of P is

A free ptih-ball of 8 g carries a positive charge of 5xx 10^-8 C. What must be the nature and magntiude of charge that should be given to a second pith-ball fixed 5 cm vertically below the former pith-ball so that the upper pith-ball is stationary?

A conductor of capacity 4 units, charged with 100 units of positive charge is connected to another conductor of capacity 2 units, charged with 20 units of negative charge. What is the change in potential of each conductor ? What will be the charges of each of them after connection?

A pith-ball A of mass 9xx10^-5 kg carries a chargeof +5muc . What must be the magnitude and sign of the charge on a pith-ball B held 2 cm directly above the pith-ball . A such that the pith-ball. A remains stationary?