Which of the following devices may be used for extending the range of instruments ?
Correct answer: E. All of the above
- A. Shunts
- B. Multipliers
- C. Current transformers
- D. Potential transformers
- E. All of the above
Explanation
Shunts extend ammeter range, while multipliers extend voltmeter range; current and potential transformers extend ranges for AC measurements and provide isolation. Hence, all listed devices can be used.
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