Module 2 | Electricity and Magnetism

Electricty

Electrons in Motion, the movement of charge

Magnetism

Physical phenomenon produces by moving electric charge. Not felt by human senses in any obvious way, nor is there any substantial evidence that it is harmful. Yet it does have subtle effects on vision and heart performance.

Magnetic Energy

Strongest natural force in the universe

Medical Magnets

(MRI - Magnetic resonance Imaging) essentially a big magnet that produces a powerful magnetic field

- millions of times larger than the fields we are normally exposed to. But because it is a static magnetic field, MRI scanners do not exert any noticeable effect on the body.

Ohm”s Law

Relationship between the Current Flow, Voltage (electromotive force) and Resistance

Current

Relationship between the Current Flow, Voltage (electromotive force) and Resistance

Power Formula

Energy and power are closely related but are not the same physical quantity.

• Energy can be transformed from one form to another.

• Power can be the ability to move or travel with speed or force.

Energy

as defined in Physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms.

Energy can be neither created nor destroyed but only changed from one form to another. This principle is known as the conservation of energy

Power

is the rate at which work is done, or energy transferred.