Solution:
A wire is cut into three equal parts and then connected in parallel with the same source. Then the resistivity remains the same and the total current will become 9 times and the current through the parts becomes three times.Let, Resistance of a wire = When cut into 3 equal parts,
Resistance of each part =
When three parts are connected in parallel, net resistance is given by,
Resistivity will remain the same.
By using the equation of ohm’s law, it is said that current through each part becomes triple to the previous value and total current in the circuit will become 9 times.
