1. Tardigrade
  2. Question
  3. Physics
  4. A 10 m long potentiometer wire is connected to a battery having a steady voltage. A Leclanche cell is balanced at 4 m length of the wire. If the length is kept the same, but its cross-section is doubled, the null point will be obtained at

Q. A long potentiometer wire is connected to a battery having a steady voltage. A Leclanche cell is balanced at length of the wire. If the length is kept the same, but its cross-section is doubled, the null point will be obtained at

 3136  204 Current Electricity Report Error

Solution:

If length is kept same, potential gradient remains same, so null point does not change.