Question

12 ohm resistance is cut into 3 equal parts in parallel. What is the equivalent resistance

Answer 1

Resistance being proportional to length of wire, as the wire (object) is cut into three equal parts, then resistance of each part =12/3 =4Ω

These parts are joined to form equilateral triangle.

Two resistances will be in series and their equivalent resistance will be parallel with resistance of third side.

Equivalent resistance, R= 8/3 ohm