Teaching RPSC School Lecturer Mock Test Series 2024 Physics Current, Resistance and Electricity Potentiometer
A potentiometer with a cell of 2.4 volt and internal resistance of 2 Ω maintains a potential drop across the resistance wire AB of length 2 meters and resistance 10 Ω. A standard cell which maintains a constant emf of 'V' volt with internal resistance 0.2 Ω gives a balance point at 1.6 m length of the wire. The value of emf of second (standard) cell (V) is:
1
2.0 volt
2
1.9 volt
3
1.8 volt
4
1.6 volt
5
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