The minimum charge on an object is

If the charge on an object is doubled then electric field becomes

What is the minimum charge observed in nature?

Fill in the following blanks with suitable words : The charging on an object by rubbing another object is called charging by…………………

A charged object having charge of-4C is given 9xx 10^19 electrons. Calculate the net charge on the object

A little charged bead is inside the hollow frictionless sphere manufactured from the insulting material. Sphere has a daimeter of 50 cm. The mass of the bead is 90mg, its charge is 0.5muC . What minimum charge must carry an object at the bottom of the sphere to keep hold the charged bead at the vertax of the sphere in stable equilibrium ?

The method of charging an object by touching is called ____.