1.

In the following circuit a 10m long potentiometer wire withresistance 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

Answer»

`4 XX 10^(–4) A`
`8 xx 10^(–4)A`
`4 xx 10^(-3) A`
`8 xx10^(-3) A`

ANSWER :A


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