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Katharometer – Device for measuring thermal conductivity Magnetometer – Comparing strengths of magnetic fields. Thermometer, thermocouple – Measuring temperature Thermostat – Device for maintaining constant temperature Vernier – Device for measuring subdivisions of a scale Anemometer – Instrument for measuring the speed of wind Calliper – Instrument for measuring distances Electrodynamometer – Instrument for measuring current, voltage or power in both AC & DC circuits. Photometer – Device for comparing intensity of sources of light Rectifier – Device for comparing AC & DC Solar cell – Cell that converts solar energy into electrical energy Voltmeter – Instrument for measuring voltage o potential difference between two points. Wavemeter – Instrument for measuring the wave length of a radiowave Galvanometer – Instrument for measuring or detecting small current.
(Ballistic galvanometer, tangent galvanometer)
Ammeter – Meter used to measure electric current hydrometer – Instrument used for measuring the density or relative density of liquids. Lactometer – Measure the density of milk. Barometer – Measure the atmospheric pressure Barograph – Used to record the accurate atmospheric pressure.
(fortin’s barometer, aneroid barometer)
Hydraulic intensifier – Used to increase the intensity of pressure of water by means of hydraulic energy
available from a large amount of water at a low pressure.
Accumulator – Device used to store the energy.
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