Quick Answer: Which Is True Test Of Electrification?

Can a charged body attract an uncharged body?

Yes, a charged body can attract another uncharged body.

When the charged body is placed near the uncharged body, the induced charges of opposite kind are produced on the uncharged body by the charged body.

Now, they are oppositely charged and the uncharged body is attracted by charged body..

What is the sure check of presence of charges repulsion or attraction?

It can only be attracted due to induction of opposite charges on the charged body. However, if the test body is charged, it will be repelled by a tester charge of the same sign. Therefore, repulsion is a sure test for the presence of charge.

Who discovered static electricity?

static electricity, discovered accidentally and investigated by the Dutch physicist Pieter van Musschenbroek of the University of Leiden in 1746, and independently by the German inventor Ewald Georg von Kleist in 1745.

How many electrons are in a Coulomb?

One coulomb (C) of charge represents an excess or deficit of 6.24 x 1018 electrons. The quantity of charge (Q) on an object is equal to the number of elementary charges on the object (N) multiplied by the elementary charge (e).

What is the true test of charging?

Attraction gives no answer. If the test charge is repulsed, one has to try with a positive and a negative test charge, but once repulsion is established, then it is sure that the surface of the object is charged with a like charge.

How repulsion is a sure test of charge on a body?

Because when we bring a charged body near an uncharged body an opposite charge is induced on the neutral body. And their will an attraction between them. But the given body is uncharged. Therefore, repulsion is a sure test of charge.

Which is the true test for electrification attraction or repulsion?

Due to induction effect a charged body can attract a neutral body as shown below. Body 1 is positively charged and body -2 is neutral. But we can see the due to distance factor attraction is more than the repulsion.

Can two like charges attract each other?

yes they can attract each other when one of them is very very large than the other then the electrostatic force acting on the two is not due to their initial charges but will be due to the charges produced due to induction. and hence attraction takes place.

What is the electrification?

Electrification is the process of powering by electricity and, in many contexts, the introduction of such power by changing over from an earlier power source. The broad meaning of the term, such as in the history of technology, economic history, and economic development, usually applies to a region or national economy.

What happens to the force between two charges if the distance between them is doubled?

The size of the force varies inversely as the square of the distance between the two charges. Therefore, if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing to one-fourth of the original value. … The size of the force is proportional to the value of each charge.

What is the sure test for electrification?

Attraction may occur between two oppositely charged bodies or a charged body and an uncharged one. That is why in attraction, one is not sure if both bodies are charged, However in repulsion, there are two bodies that have the same charge. And hence we say that That is why repulsion is the sure test of electrification.

Why Repulsion is the surest test of charge?

Attraction may occur between two oppositely charged bodies or a charged body and an uncharged one. … Repulsion is sure to test of charge of a body because of it indicates that the other object is charged and has charge opposite to that of first object.

Is Coulomb’s law a universal law Why?

Coulomb’s law only works for a point charge, and not for all charge distributions. As it only works in certain situations (as does Ohm’s Law), then it is not universal. A universal law will work in any situations.

Is the surest test of electrification?

Attraction may occur between two oppositely charged bodies or a charged body and an uncharged one. … But two bodies will repel only if they have opposite charge so we take repulsion as sure test of electrification.

Can a body have a charge of 0.8 * 10/19 Justify?

No, the body Cannot have have a charge of 0.8* 10 ⁻¹⁹ C charge.

Why repulsion is a sure test of magnetism?

Sol. This is because , Repulsion takes place only between two likes poles of a magnet whereas attraction takes place between two unlike poles of a magnet and also between a magnet and a magnetic material . … So , repulsion is the sure test of magnetism .