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The dynamometer principle can be used for
ammeter only.
wattmeter only.
voltmeter only.
ammeter, voltmeter and wattmeter.
wattmeter only.
Quick Summary: Practice and solve "The dynamometer principle can be used for..." for Electrical - Measurement & Instrumentation. The correct answer is Option B: wattmeter only.. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(b) **