Question

Two wires A and B are of equal lengths , different cross-section areas are made of same metal.
1.name the properthu which is same for both the wire
2. Name the property which is different for both the wire
3.if the resistance of wire A is four times the resistance of wire B, calculate the ratio of cross-section areas of the wire and ratio of radii of the wires

Answer 1

Answer:

1. Resistivity
2. Resistance
3. rb/ra=2/1