A wire of resisitance 12ohms per meter is bent to form a complete circle of radius 10cm. The resistance between its two diametrically opposite points, A and B shown in the figure, is
3
6
As we learnt in
Ammeter -
It is a device used to measure current and always connected in series
- wherein
Resistance of half wire =
(Since two half are in parallel)
Option 1)
3
Correct
Option 2)
Incorrect
Option 3)
6
Incorrect
Option 4)
Incorrect