Whenever an atom contains excess negative charge, it is called a negative ion. This means that the atom picked up negative charges from another atom. The atom that lost the electrons becomes a positive ion. When a substance picks up or loses electrons, its called triboelectricity.

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

Electron, lightest stable subatomic particle known. It carries a negative charge of 1.602176634 × 10−19 coulomb, which is considered the basic unit of electric charge.

Electric charge is a physical property of matter. It is created by an imbalance in a substance’s number of protons and electrons. The matter is positively charged if it contains more protons than electrons, and it is negatively charged if it contains more electrons than protons.

Inside an atom are protons, electrons and neutrons. The protons are positively charged, the electrons are negatively charged, and the neutrons are neutral.

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

• Static Electricity. Static Electricity is nothing but the contact between equal amount of protons and electrons (positively and negatively charged subatomic particles).
• Current Electricity. Current Electricity is a flow of electric charge across an electrical field.
• Hydro Electricity.
• Solar Electricity.

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.

In order to tell the sign of an object charge, you need another object with a known positive or negative charge. If you rub a piece of glass with silk, it will have a positive charge (by convention). If you rub a piece of amber with fur, it will have a negative charge (also by convention). Use whatever you have handy.

Answer: Your Left hand is negatively charged, and receives energy.

It probably because at the inner core of the Earth, the temperature and pressure is so high that the atoms there are ionized. So the inner part of earth is posstively charged.

On the earth’s surface, the electric field can be as strong as 100 to 300 V/m. This means that if you are out in the open, and away from buildings or other things that would affect the field, there can be a few hundred volts between your head and your toes! Currents from the ionosphere to the ground.

The strongest external magnetic fields are near the poles. A magnetic north pole will attract the south pole of another magnet, and repel a north pole. The magnetic field lines of a bar magnet can be traced out with the use of a compass.

The magnetic field is weakest at the center and strongest between the two poles just outside the bar magnet. The magnetic field lines are densest at the center and least dense between the two poles just outside the bar magnet.

However, tracing the Martian surface magnetic field indicated that Mars lost its magnetic field 4 billion years ago, leaving the atmosphere under severe attack by the solar wind. At present, the reason why Mars’ global magnetic field disappeared is still not clear.

For a magnet, the flux lines repel each other so the field will be weaker at the sides. But they are concentrated at the poles, where they originate, so the field is stronger.