Important Questions for CBSE Class 12 Physics Current Electricity Important Questions for CBSE Class 12 Physics Potentiometer, Cell and their Combinations. 1 A device to maintain a steady current in an electric circuit is electrolytic cell. Potentiometer - Study Material for IIT JEE | askIITians Potentiometer and VoltmeterConstruction of A PotentiometerPotential GradientComparison of EMF in A PotentiometerSummaryA potentiometer is a device that is used to measure the potential difference in a circuit. We know that potential difference is the amount of work done in bringing a charge from one point to other. When there is a potential difference in a circuit, the current flows through the circuit. The unit of potential difference is measured in volts. The potential difference of a circuit can be measured by a voltmeter.A voltmeter consists of a coil which is suspended between the North Pole and the Sout..See more on askiitians The potentiometer- Comparison of emf (Theory) : Class 12 Objective. To compare the emf’s of two given primary cells using a potentiometer. Theory Potentiometer. Potentiometer is a device used to compare the e.m.f. (electromotive force) of two cells, to measure the internal resistance of a cell, and potential difference across a resistor.
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