In the following circuit a 10 m long potentiometer wire with resistance 1.2 ohm/m, a resistance and an accumulator of emf 2V 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:

In the following circuit fig, a 10m long potentiometer wire with resistance 1,2 ohm/m, a resistance R_1 and an accumulator of e.m.f. 2V are connected in series. When the e.m.f. of thermocouple is 2.4 mV the deflection in galvanometer is zero. The current supplied by the accumulator will be

A potentiometer wire has length 5 m and resistance 100 2 . A rheostat of range (100 2 - 1 k2) and accumulator of emf 20 V is connected with potentiometer wire. The maximum potential gradient possible in the wire is

A potentiometer wire has length 5 m and resistance 100 2 . A rheostat of range (100 2 - 1 k2) and accumulator of emf 20 V is connected with potentiometer wire. The maximum potential gradient possible in the wire is

The resistance of a potentiometer wire of length 10m is 20 ohm. A resistance box and a 2 volt accumulator are connected series with it. Resistance required to be introduced in the box to have a potential drop of one microvolt per millimeter of the potentiometer wire will be

A potentiometer wire has length 4 m and resistance 8 Omega . The resistance that must be connected in series with the wire and an accumulator of e.m.f. 2 V , so as the get a potential gradient 1 mV per cm on the wire is

A potentiometer wire has length 4 m and resistance 8 Omega . The resistance that must be connected in series with the wire and an accumulator of e.m.f. 2 V , so as the get a potential gradient 1 mV per cm on the wire is

A potentiometer wire has length 4 m and resistance 8 Omega . The resistance that must be connected in series with the wire and an accumulator of e.m.f. 2 V , so as the get a potential gradient 1 mV per cm on the wire is