Physics

Metastability Definition Metastability is the quality of a physical system that persists in its existing equilibrium when undisturbed or only slightly disturbed, but able to…

Infrared Definition Infrared or Infrared radiation is the part of the electromagnetic spectrum with a longer wavelength than light but a shorter wavelength than radio…

Silver Chloride Definition Silver chloride is a white insoluble powder that darkens on exposure to light because of the production of metallic silver: used in…

About Ultraviolet Radiation Definition Ultraviolet Radiation is absorbed by the ozone molecules in the upper atmosphere (stratosphere), but a potentially dangerous amount passes through the…

Ultraviolet Catastrophe Definition Ultraviolet Catastrophe refers to a paradox that emerged in scientists’ understanding of the way light is emitted by black bodies that exist…

Force Definition Force is a dynamic influence that changes a body from a state of rest to one of motion or changes its rate of…

Magnetometer Definition Magnetometer is an instrument for measuring the magnitude and direction of a magnetic field. Magnetometers are often used in archaeological and geological investigations…

Torque Definition Torque is the tendency of a force applied to an object to make it rotate about an axis. It is also a vector…

Electric Motor Definition Electric motor is a device that converts electrical energy to mechanical torque. In other words, the devices which produce rotational force are…

About Electric Generator Definition Electric Generator is a machine that converts mechanical energy to electric energy. It is a device that converts motive power into…

About Ampere Definition Ampere is the basic unit of electrical current in the International System of Units (SI), equivalent to one coulomb per second. It…

Alnico Definition Alnico is a powerful permanent-magnet alloy containing iron, nickel, aluminum, and one or more of the elements cobalt, copper, and titanium. Alnico alloys…