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Electromagnetic shielding. Electromagnetic shielding cages inside a disassembled mobile phone. In electrical engineering, electromagnetic shielding is the practice of reducing or redirecting the electromagnetic field (EMF) in a space with barriers made of conductive or magnetic materials. It is typically applied to enclosures, for isolating ...
An EMF meter is a scientific instrument for measuring electromagnetic fields (abbreviated as EMF). Most meters measure the electromagnetic radiation flux density (DC fields) or the change in an electromagnetic field over time (AC fields), essentially the same as a radio antenna, but with quite different detection characteristics.
Blue Shield of California is a mutual benefit corporation and health plan [ 6 ][ 7 ] founded in 1939 by the California Medical Association. It is based in Oakland, California, and serves 4.5 million health plan members and more than 65,000 physicians across the state. Blue Shield of California was founded as a not-for-profit organization.
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Website. www .bcbs .com. Blue Cross Blue Shield Association, also known as BCBS, BCBSA, or The Blues, is a United States -based federation with 34 independent and locally-operated BCBSA companies that provide health insurance in the United States to more than 115 million people as of 2022. [ 2][ 3] It was formed in 1982 from the merger of its ...
t. e. In electromagnetism and electronics, electromotive force (also electromotance, abbreviated emf, [1] [2] denoted ) is an energy transfer to an electric circuit per unit of electric charge, measured in volts. Devices called electrical transducers provide an emf [3] by converting other forms of energy into electrical energy. [3]
A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device that interrupts an electrical circuit when the current passing through a conductor is not equal and opposite in both directions, therefore indicating leakage current to ground or current flowing to another powered conductor.
Covered California is the health insurance marketplace in the U.S. state of California established under the federal Patient Protection and Affordable Care Act (ACA). The exchange enables eligible individuals and small businesses to purchase private health insurance coverage at federally subsidized rates. It is administered by an independent ...