- Potentiometer works on zero deflection method so possibility of error is very small.
- The standardization of potentiometer can be done directly with a standard cell.
- This is highly sensitive so can be used to measure small emf’s.
- For more accuracy the length of potentiometer wire can be increased according to requirement.
- It does not draw any current from the circuit in which it is used for measurement.
Browse More Topics Related to Potentiometer:
- Potentiometer Working Principle
- Difference Between Potentiometer and Voltmeter
- Sensitivity of Potentiometer
- Uses of Potentiometer
- Advantages of Potentiometer
- Potentiometer Important Questions
- Potentiometer provides the exact value of potential difference across any two points in a circuit because it never draws any current from the circuit whereas in the case of voltmeter there is always loss of energy due to internal resistance of cell
- Accuracy of potentiometer can be increased by increasing length of potentiometer but same cannot hold for voltmeter.
- The use of Potentiometer is inconvenient.
- The area of cross-Section of potentiometer wire must be uniform which is practically not possible.
- During experiment the temperature of potentiometer wire must remain uniform. This is difficult because of flow of current.
- The major disadvantage is that it requires a large force to move their sliding contacts i.e. wiper. There is wear and tear due to movement of the wiper. It reduces the life of this transducer.
- Also, there is limited bandwidth.
Watch out the Video: Applications of Potentiometer & its Construction by Saransh Sir.
The Potentiometer and voltmeter both measures the emf in volts. The Potentiometer is used in a circuit where the accurate value of voltage is required. For approximate calculation, the voltmeter is used.
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- Ohm’s Law and Resistance
- Combination of Resistances
- EMF and Internal Resistances of a Cell
- Cells Connected in Series, parallel and Mixed
- Kirchhoff’s Circuit Law
- Electric Currents in Conductors
- Wheatstone Bridge
- Post office Box
- Wheatstone Meter Bridge
- Moving Coil galvanometer
- Ammeter and Voltmeter