Question

The resistance of a 10 m long potentiometer wire is 20 Ω. It is connected in series with a 3 V battery and 10 Ω resistor. The potential difference between two points separated by distance 30 cm is equal to _____ . (A) 0.02 V
(B) 0.06 V
(C) 0.1 V
(D) 1.2 V

Answer 1

The resistance of potential difference wire has 0.1 bolt and carry with resistance with potential values.

In fact, the battery has evaluated with resistance and carries with 10m by long potentiometer wire by 2ohm.

It is connected in series by carrying by 3V battery and 10ohm by resistor.

It measures by distance of 30cm is equal to 0.1 volt.

Answer 2

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☸ Required Answer is C) 0.1 V


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