When this near-surface heat is transferred to water, a usable form of geother-energy is created. Geothermal energy is called a renewable energy source because the water is replenished by rainfall, and the heat is continuously produced by the earth. 2.he double-layered core is made up of very hot molten iron surrounding a solid iron center. Estimates of the temperature of the core range from 5,000 to 11,000 degrees Fahrenheit (F). Heat is continuously produced within the earth by the slow decay of radioactive particles that is natural in all rocks.
A galvanometer is a type of sensitive ammeter: an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field.
You add a large series resistor to make it into a voltmeter. You add a small shunt (parallel) resistor to make it into an ammeter. Example. If the galvo full scale is 20mV and 20uA, ie, 1k resistance.To make the galvo into a 1 amp FS ammeter, a shunt resistor of: Req = 20mV/1amp = 20m.This is much smaller than the 1k, so a shunt resistor of 20m would work.rom Wikipedia. Galvanometer. A galvanometer is a type of ammeter: an instrument for detecting and measuring electric current. It is an analog electromechanical transducer that produces a rotary deflection of some type of pointer in response to electric current flowing through its coil.