in the balancing condition of potentiometer its resistance is
Answers
Answer:
infinity hota h bhai maan ja Kar le demaj ko teej
Answer:
The potential difference across the secondary circuit is equal to the battery's EMF when the potentiometer is in its balanced state.
Explanation:
The potentiometer's potential difference across the main wire is at its maximum value and nearly no current flows through it when it is in its balanced state. So a potentiometer's resistance is regarded as being very high when it is in its balanced condition (almost tends to infinity). The jockey will refer to the balance length wire in a potentiometer as the balancing length. The internal resistance is proportional to both the potentiometer's balancing length and the battery's emf. The battery that needs to be tested has a higher emf than a typical cell.
Thus, the potentiometer wire's common point and the source being compared must have the same polarity.