In the following circuit a 10 m long potentiometer wire with resistance 1.2 ohm/m , a resistance R 1 and an accumulator of emf 2 V are connected in series. When the emf of thermocouple is 2.4 mV then the deflection in galvanometer is zero. The current supplied by the accumulator will be A. `4 xx 10^(–4) A`B. `8 xx 10^(–4)A`C. `4 xx 10^(-3) A`D. `8 xx10^(-3) A`

In the following circuit a 10 m long potentiometer wire with resistanc

1.	In the following circuit a 10 m long potentiometer wire with resistance 1.2 ohm/m , a resistance R 1 and an accumulator of emf 2 V are connected in series. When the emf of thermocouple is 2.4 mV then the deflection in galvanometer is zero. The current supplied by the accumulator will be A. `4 xx 10^(–4) A`B. `8 xx 10^(–4)A`C. `4 xx 10^(-3) A`D. `8 xx10^(-3) A`
Answer» Correct Answer - A

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