Category: E

A magnet consisting of a length of insulated wire wound around a soft iron core. When an electrical current flows through the wire, a magnet is produced. A wire wrapped in a spiral around a core made of soft iron. The core becomes highly magnetized when electric current passes through the wire and loses its…

The passage of a direct current between metallic electrodes immersed in an ionized solution. In metals, the electric charges are carried by the electrons of inappreciable mass. In solutions, the electric charges are carried by electrolytic ions, each having a mass several thousand times as great as the electron. The positive ions move to the…

Measurement of serum-plasma ions, such as sodium, chloride, and potassium, without prior dilution of the sample. Direct measurement of electrolytes is considered more physiologically accurate than indirect measurement.  

A laboratory method of identifying antigens in the blood by creating an artificial antigen-antibody reaction.  

To the electrical generation of shock waves in a fluid; said of a device or system.  

An electrical device for measuring angles of joints and their range of motion.  

A technologist who operates and maintains electroencephalographic machines.  

An instrument for recording the electrical activity of the brain.  

The retrieval of semen by electrical stimulation of the prostate. Electroejaculation is used to obtain sperm from men who are unable to ejaculate, e.g., because of spinal cord in jury. It has also been used in veterinary medicine.  

An instrument that measures the strength of an electric current. A device that measures both the voltage and amperage of alternating current.