A metel rod of the length 10cm and a rectangular cross-section of 1 cm xx `1//2` cm is connected to a battery across opposite faces. The resistance will be

A metal rod of the length 10cm and a rectangular cross-section of 1 cm x 1//2 cm is connected to a battery across opposite faces. The resistance will be

A metal rod of length 10 cm and a rectangular cross-section of 1 cm xx 1/2 cm is connected to a battery across opposite faces. The resistance will be:

A metal rod of length 10 cm and a rectangular cross-section of 1 cm xx (1)/(2) cm is connected to a battery across oppostie faces. The resistance will be

A metal rod of length of 10 cm and a rectangular cross - section of 1 cm xx (1)/(2) cm is connected to a battery across apposite face . The resistance will be .'

A copper rod with length 1.4 m and area of cross-section of 2 cm^2 is fastened to a steel rod with length L and cross-sectional area 1 cm^2 . The compound rod is subjected to equal and opposite pulls to magnitude 6.00xx10^4 N at its ends . (a) Find the length L of the steel rod if the elongation of the two rods are equal . (b) What is stress in each rod ? (c ) What is the strain in each rod ? [Y_"steel"=2xx10^11 Pa , Y_(Cu)=1.1xx10^11 Pa]

A copper rod of length 20cm and cross-sectional area 2mm^(2) is joined with a similar aluminium rod as shown in figure .Find the resistance of the combination between the ends, Resistivity of copper =1.7xx10^(-8)(Omega)m and that of aluminium =2.6xx10^(-8)(Omega)m .