Extra high voltage (EHV) refers to an electric potential difference as great as 275,000 volts.^{[citation needed]} A power supply that provides an e.m.f. as great as 275,000 volt is known as an "EHV Power Supply". It is often used in experiments in Physics and Electrical Engineering. it is commonly used term in TV supplies television CRT(cathode ray tube) uses this type of supply to deflect electron beam. A CRT supply in a typical TV ranges from 15kv to 25kv. International safety symbol Caution, risk of electric shock (ISO 3864), colloquially known as high voltage symbol. ... Potential difference is a quantity in physics related to the amount of energy that would be required to move an object from one place to another against various types of force. ... Josephson junction array chip developed by NIST as a standard volt. ... A wall wart style variable DC power supply with its cover removed. ... An electromotive force (emf) is the force, measured in volts, that is produced by interaction between a current and a magnetic field, at least one of which is changing. ... From Latin ex- + -periri (akin to periculum attempt). ... Physics (Greek: (phúsis), nature and (phusiké), knowledge of nature) is the science concerned with the fundamental laws of the universe. ... Electrical Engineers design power systems… … and complex electronic circuits. ...

See also

Energy Portal

• High Voltage

{{physics-stub chris rules}} hitesh Image File history File links Portal. ... In electrical engineering High voltage refers to a voltage which is high. ...