Instrument that measures voltages of either direct or alternating electric current on a scale usually graduated in volts.
Voltmeter with dual range capability is a type of voltage measuring instrument that can measure voltage in three different ranges, experiments can be performed and tested on different ranges and the result can be calculated more precisely.
The purpose of having dual range functionality is to provide greater flexibility and accuracy when measuring a wide range of voltages.
Water turbine used for educational, experimental, or demonstration purposes.
Water turbines are devices that harness the kinetic energy of flowing water and convert it into mechanical energy, which can then be used to generate electricity or perform other mechanical work.
The conversion of mechanical energy into electrical energy either can be demonstrated by LED or a motor with color disc.
A dynamo is driven by the water turbine via rubber belt.
