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The standardization of AC potentiometer is done by ____________(a) Using a DC standard source and d’ Arsonval galvanometer(b) Using AC standard sources and transfer instruments(c) Using a standard AC voltage source(d) Using a DC standard source and transfer instrumentsThe question was asked during an internship interview.The query is from Advanced Problems on Indicating Instruments in portion Extension of Instrument Ranges of Electrical Measurements |
Answer» RIGHT option is (d) Using a DC standard source and transfer instruments Easiest EXPLANATION: Standardization of AC potentiometer is done with the help of standard DC source i.e., a standard cell or a Zener source and a transfer instrument where transfer instrument may be an ELECTRODYNAMOMETER or a THERMOCOUPLE instrument. |
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