Question

The loading effect on the potentiometer can be avoided by the use of
1. Alternator
2. Battery
3. Constant current source
4. Trimmer

Answer 1

Correct Answer - Option 4 : Trimmer

The output of a sensor device may deviate from the correct value due to loading effect. We can categorize two types of loading effect:

Inter element loading: A given element in the system may modify the characteristics of the previous element.

Process loading: The introduction of the sensing element into the process or system being measured causes the value of the measured variable to change.

The loading effect on the potentiometer can be avoided by the use of trimmer potentiometer. It is a potentiometer designed for relatively infrequent adjustments.