To use a rheostat as variable resistor, the terminals which are inserted in a circuit are
Correct answer: A. Fixed terminal A and sliding contact C
- A. Fixed terminal A and sliding contact C
- B. Both fixed terminals A and B
- C. Fixed terminal B and sliding contact C
- D. All of above
Explanation
In a rheostat, the terminals used in a circuit are the fixed terminal A and the sliding contact C. Terminal A remains fixed and is connected to one end of the resistive element, while the sliding contact C is movable and adjusts the resistance by changing its position along the resistive element.
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