Calculate the resistance of an aluminium wire of length 50 cmand cross sectional area `2.0mm^(2)`. The resistivity of aluminium is `(rho)=2.6xx10^(-8)(Omega)m.`

Calculate the resistance of an aluminium wire of length 50 cm and cross sectional area 2.0mm^(2) . The resistivity of aluminium is (rho)=2.6xx10^(-8)(Omega)m.

Calculate the resistance of a metal wire of length 2 m and area of cross section 1·55 xx 10^(-6) m^(2) , if the resistivity of the metal be 2·8 xx 10^(-8) Omega m ?

Find the resistance of a nichrome wire of length 1m and area of cross-section 2mm^(2) .The resistivity of nichrome of nichrome is 100xx10^(-6)Ohm-m .

Calculate the length of an aluminium wire of diameter 0.5 mm required to have a resistance of3 Omega at 20^(@)C .Rresisitvity of aluminium is 2.8xx10^(-8)Omegam

Calculate the length of an aluminium wire of diameter 0.4 mm required to have a resistance of 2 Omega at 20 ^@C . Resistivity of aluminium is 2.8 xx 10^-8Omegam .

(a) Write down an expression for the resistance of a metallic wire in terms of the resistivity. (b) What will be the resistance of metal wire of length 2 metres and ares of cross-section 1.55 xx 10^(-6)m^(2) , if the resistivity of the metal be 2.8 xx 10^(-8) Omega m ?

The resistance of a wire of length 330m and cross-section area 1.0 mm^(2) made of material of resistivity 1.0 xx 10^(-7) Omegam is:

Resistance of the conductor of length 5m and area of cross -section 4 mm^(2) s 0.02 Omega . Its resistivity is

Resistance of the conductor of length 5m and area of cross -section 4 mm^(2) s 0.02 Omega . Its resistivity is