what is the use of potentiometer
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The measuring instrument called a potentiometer is essentially a voltage divider used for measuring electric potential.
The Potentiometer is an electric instrument that used to measure the EMF of a given cell, the internal resistance of a cell. And also it is used to compare EMFs of different cells.
Comparison of emfs of the cells
Measurement of internal resistance of a cell
Measurement of small emfs like that in a thermocouple
.A photoresistor (or light-dependent resistor, LDR, is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. ... A photoresistoris made of a high resistance semiconductor
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The measuring instrument called a potentiometer is essentially a voltage divider used for measuring electric potential.
The Potentiometer is an electric instrument that used to measure the EMF of a given cell, the internal resistance of a cell. And also it is used to compare EMFs of different cells.
Comparison of emfs of the cells
Measurement of internal resistance of a cell
Measurement of small emfs like that in a thermocouple
.A photoresistor (or light-dependent resistor, LDR, is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. ... A photoresistoris made of a high resistance semiconductor
HOPE IT HELPS
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