AP EAMCET Engineering 2018 Apr 23 Shift 1 Paper

Section: Physics

Question : 109 of 160

Marks: +1, -0

In a potentiometer, a wire of length 10 m having resistance 50 Ω is used. A battery of 5 V and a resistor of 450 Ω are connected in series to the wire. If an unknown battery of emf 'E' balances the potentiometer at 450 cm. then the value of E is

0.225 V
1.25 V
2.25 V
0.0225 V

Validate

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