What needs to be done to: a) impart a positive charge to the glass rod;

What needs to be done to:
a) impart a positive charge to the glass rod;
b) inform the ebonite stick with a negative charge;
c) neutralize the positive charge generated in the balloon?

a) Rub the glass rod on silk; b) rub the ebony stick on the sword; c) touch it with your hand

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