Two solid conductors are made up of same material have same length and same resistance . One of them has circular crosssection of area `A_1` and other one has square cross section of area `A_2`. RATIO `A_1/A_2`

Two wires are made of the same material and have the same volume. However wire 1 has cross-section area A and wire 2 has cross-section area 3A. If length of wire 1 increased by

Two wires made of same material have their electrical resistances in the ratio 1:4 if their lengths are in the ratio 1:2 , the ratio of their masses is

Two pieces of conductor of same material and of equal length are connected in series with a cell. One of the two pieces has cross-sectional area double that of the other. Which one of the following statements is correct in this regard ?

Two wires made of same material have lengths in the ratio 1:2 and their volumes in the same ratio. The ratio of their resistances is

Two wires of same material and length have the radii of their cross sections as r and 2r, respectively. The ratio of their resistances