Positively charged ions are called cations; negatively charged ions, anions.

An ion is an atom (or group of atoms) that has lost one or more electrons, giving it a net positive charge (cation), or that has gained one or more electrons, giving it a net negative charge (anion).

cation

Electric charges are of two general types: positive and negative.

When two materials in different positions on the triboelectric series are rubbed together, the materials towards the positive end give up electrons and become positively charged, and those towards the negative end accept electrons and become negatively charged.

Electric charge comes in two varieties, which we call positive and negative. Like charges repel each other, and unlike charges attract each other. Thus, two positive charges repel each other, as do two negative charges. A positive charge and a negative charge attract each other.

Electric Charge

• protons are positively charged.
• electrons are negatively charged.
• neutrons have zero charge.

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. The size of the force varies inversely as the square of the distance between the two charges.

Yes, when the charge on one body (q1) is much greater than that on the other (q2) and they are close enough to each other so that force of attraction between q1 and induced charge on the other exceeds the force of repulsion between q1andq2. …

Is it possible for two negative charges to attract each other? No, they will never attract.

A neutral object will attract both a positive and a negative charge. This is because in some objects, electrons are free to move and transform the charge from positive to negative. These attractive and repulsive forces are exactly that, forces. A charged object has an effect on other charged objects around it.

Opposite charges attract each other (negative to positive). Like charges repel each other (positive to positive or negative to negative). The rubbing of certain materials against one another can transfer negative charges, or electrons.

The two charges repel each other. If a positive charge and a negative charge interact, their forces act in the same direction, from the positive to the negative charge. As a result opposite charges attract each other: The electric field and resulting forces produced by two electrical charges of opposite polarity.

When you bring a negatively charged object close to a neutral pith ball, These positive and negative charges attract the two closer and if they touch each other, positive charges get nullified and both bodies become negatively charged. Once both are negatively charged, they tend to repel each other.

Since most other objects, unless they are charged before, belong to this third group they are called neutral. Like charges attract and unlike (positive and negative) charges attract. Neutral object are attracted to either charge.

Ex, when you rub a rubber rod with fur, the rubber becomes negatively charged. In contrast, when you rub a glass rod with silk, the glass becomes positively charged.

Choice of the names negative or positive is arbitrary. If you rub a glass rod with a cloth, the charge produced on the glass rod is called positive, whereas when a plastic rod is rubbed with a cloth, the charge produced on the plastic rod is negative.

All charged particles come in one of two types: positive and negative (or plus and minus). The minus particles are the electrons, and the plus particles are the much heavier protons which are buried deep in the nucleus. As the distance between the charges is increased, the force quickly becomes smaller.

Explanation: When you rub plastic, you transfer electrons from one material to the other. Because plastic is an insulator, the electrons cannot flow through it so they effectively get stuck there – they are static.

In physics, charge, also known as electric charge, electrical charge, or electrostatic charge and symbolized q, is a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons. The two types of charge are equal and opposite.

There are two types of electric charge: positive charge and negative charge. If the same amounts of negative and positive charge are found in an object, there is no net charge and the object is electrically neutral.

Image 2: Basic nature of charges

• Like charges repel each other, that is one electron will repel another electron, or one proton will repel another proton.
• Unlike charges attract each other, that one electron will attract another proton or vice versa.

Charge originates in pair production . In this process we start with couple very energetic photons. Each photon has an electric and magnetic field. Although they have electric fields there is not yet a divergence and so they have no charge.

Benjamin Franklin

In the year 1909 Robert A. Millikan and Harvey Fletcher of Chicago University performed a simple but elegant experiment, which demonstrated that charge is quantized. This experiment is popularly known as the “Oil Drop Experiment” [1], which brought the Nobel Prize in Physics to Millikan in the year 1923.