Search coil by computer to determine displacement in multiple dimensions. Additionally, a second search coil can be added to measure torsional rotation. A more crude search coil also called exploring coil is also used in laboratory experiments in schools to measure the magnetic field in a certain region of space. In this case the search coil consists of a simple wire coil or solenoid connected to a sensitive ammeter or galvanometer. The coil is placed in the magnetic field to be measured and quickly withdrawn to a region of space with a negligible magnetic field. As the search coil moves the magnetic
Induction cooking Induction cooking Induction cooking heats a cooking vessel electrically by magnetic induction, instead of by radiation or thermal conduction from an electrical heating element, or from a flame. Because inductive heating directly heats the vessel, very rapid increases in temperature can be achieved, and changes in heat settings are instantaneous. In an induction cooktop ("induction hob" or "induction stove"), a coil of copper wire is placed under the cooking pot and an alternating electric current is passed through it. The resulting oscillating magnetic field induces an electrical current in the pot. This large eddy current flowing through the resistance of