A 2 volt battery, a \[15\,\Omega \] resistor and a potentiometer of 10 – McqOptions

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1.	A 2 volt battery, a \[15\,\Omega \] resistor and a potentiometer of 100 cm length, all are connected in series. If the resistance of potentiometer wire is \[5\,\Omega \], then the potential gradient of the potentiometer wire is [AIIMS 1982]
A.	0.005 V/cm
B.	0.05 V/cm
C.	0.02 V/cm
D.	0.2 V/cm
Answer» B. 0.05 V/cm

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