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List the current problems facing developing countries?
Ayrton
Refers to Hertha Ayrton, a British engineer, mathematician, physicist, and inventor, known for her work on electric arcs and ripples in sand and water.
D'Arsonval
Refers to a type of galvanometer used for detecting and measuring small electric currents by the mechanical movement it produces through a magnetic field.
D'Arsonval Meter
A type of ammeter, based on the D'Arsonval galvanometer, used to measure electric current with a moving coil in a magnetic field.
Moving Coil
A type of electromagnetic actuator where a coil within a magnetic field moves when current flows through it, commonly found in loudspeakers and galvanometers.
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