Metre Bridge-Resistance of a wire
 1) What is the best material used for making connecting wires? Nichrome Tungsten Copper Constantan

 2) Conductivity is the reciprocal of _________. Conductance Capacitance Specific resistance Resistivity

 3) Two wires A and B are made of same material has equal length and A is having twice the area of B. Which of the following is true in this case? Resistances of A is greater than that of B Resistances of both A and B are equal Resistance cannot be predicted Resistance of B is greater than that of A

 4) A wire has resistivity ρ, its length is doubled and its area of cross section is halved. What will be the new value of resistivity of the wire? ρ 4ρ ρ/2 2ρ

 5) The resistance of the conductor of unit length and unit area of cross section is called? Capacitance Specific resistance Conductivity Conductance

 6) Calculate the resistance of a copper wire of 50 m long and diameter 1 mm. Resistivity of copper is 1.7 x 10-8 Ωm. 1.08 Ω 0.108 Ω 108 Ω 10.8 Ω

 7) Find the resistivity of the material of a wire of length 1 m and diameter 2mm, if its resistance is 16 ohms. 4 π x 10⁻⁷ Ωm 16π x 10⁻⁷ Ωm 16π x 10⁻⁶ Ωm 4π x 10⁻⁶ Ωm

Cite this Simulator: