# What happened when Thales rubbed an amber into a woolen cloth?

## What happened when Thales rubbed an amber into a woolen cloth?

In 600 B.C.E., Thales of Miletus found that when he rubbed amber with wool, the amber then attracted bits of straw. We now know that this ability arises from the fact that after one rubs amber with wool, the amber becomes electrically charged (and so does the wool, with opposite charge).

What happens when you rub amber?

When amber is rubbed with wool or silk, amber becomes positively charged. This is explained with the help of the concept of static electricity. (b) There are two types of charges and they are positive charge and negative charge. (c) Like charges repel each other while the unlike charges attract each other.

### What happens if the glass rod is rubbed against silk cloth?

A glass rod becomes positively charged when rubbed with silk, while the silk becomes negatively charged.

When amber is rubbed with wool or silk attracts light objects?

Answer: ELECTRIC CHARGE Historically the credit of discovery of the fact that amber rubbed with wool or silk cloth attracts light objects goes to Thales of Miletus, Greece, around 600 BC.

#### Is amber positive or negative?

Thus, when amber is rubbed with fur, electrons are transferred from the fur to the amber, giving the amber an excess of electrons, and, hence, a negative charge, and the fur a deficit of electrons, and, hence, a positive charge.

Is wool negative or positive?

Certain types of objects seem particularly adept at being charged. Silk tends to give things a positive charge, and wool tends to give a negative charge.

## What will happen when two unlike charges are brought together they will?

Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges. If the charges come 10 times closer, the size of the force increases by a factor of 100.

When a glass rod is rubbed with silk it gains?

Solution: When a glass rod is rubbed with silk, glass rod loses electrons and silk gains electrons. Glass rod becomes positively charged and silk becomes negatively charged.

### When a glass rod is rubbed with a piece of silk cloth the rod * 1 point?

When a glass rod is rubbed with a piece of silk cloth, a transfer of charge takes place. Thus, as a result the glass the rod acquires a positive charge while the piece of silk cloth acquires a negative charge.

What will happen if amber is rubbed with a fur?

#### What happens when we rub a glass rod with wool?

An electroscope can be charged using glass or rubber rods rubbed with silk or wool. When the glass rod is rubbed with silk, the silk strips electrons from the rod, leaving it a positive charge. When the hard rubber rod is rubbed with wool, it gains electrons from the wool, gaining a negative charge.

What happens when plastic rod is rubbed with wool?

When you rub the plastic rod (polyethylene terephthalate, glycol modified, or PETG) with the wool cloth, the rod charges negative. When you rub the glass rod with the silk, the rod charges positive. The Coulomb, the unit of electrostatic charge, is named after him.