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A device often used in electric circuits to change the resistance without changing the voltage source is the ___________.
Fuse
Ammeter
Voltmeter
Rheostat
Rheostat
Practice and solve "A device often used in electric circuits to change the resistance without changing the voltage sourc..." for General Science - Previous Year Paper 2025. The correct answer is Option D: Rheostat. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "A device often used in electric circuits to change the resistance without changing the voltage sourc..." for General Science - Previous Year Paper 2025. The correct answer is Option D: Rheostat. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.