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What happens when two objects have the same charge?

Having the same type of charge, they will repel. Charged and neutral objects always attract each other.

How does an object get charged by friction?

When two different materials are rubbed together, there is a transfer of electrons from one material to the other material. This causes one object to become positively charged (the electron loser) and the other object to become negatively charged (the electron gainer).

Do most objects have some overall charge?

Most objects have no overall charge. If an object loses electrons, it is left with more protons – giving it an overall positive charge. If an object gains electrons, it will have an overall negative charge. The build-up of charges on an object is called static electricity.

How do we determine a charged object?

The quantity of charge on an object reflects the amount of imbalance between electrons and protons on that object. Thus, to determine the total charge of a positively charged object (an object with an excess of protons), one must subtract the total number of electrons from the total number of protons.

Why do objects become charged?

An electrical charge is created when electrons are transferred to or removed from an object. Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.

Why is water attracted to a charged object?

A charged object attract small particles, such as dust. The charge in the object causes a complementary charge to develop in something close to it. The charge on the comb attracts the molecules of water in the stream. Because the molecules in the stream can be moved easily, the stream bends toward the comb.

What happens when a positive object touches a neutral object?

Charging by conduction involves the contact of a charged object to a neutral object. Suppose that a positively charged aluminum plate is touched to a neutral metal sphere. The neutral metal sphere becomes charged as the result of being contacted by the charged aluminum plate.