Home
Class 12
PHYSICS
A negligbly small current is passed thro...

A negligbly small current is passed through a wire of length 15 cm and uniform cross-section `6.0xx10^(-7) m^(2)` and its resistance is measured to be `5.0 Omega`. What is the resistivity of the material at the temperature of the experiment ?

A

`1.8xx10^(-6)Omega-m`

B

`0.2xx10^(-6)Omega-m`

C

`0.6xx10^(-6)Omega-m`

D

`0.9xx10^(-6)Omega-m`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -2 (Level-1) SECTION C,D - Circuit theory , KCL & KVL, Battery , Grouping of cells|14 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -2 (Level-1) SECTION E- Electrical Power & Energy|8 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -2 (Level -I) SECTION A- Definition of Current , Current Density , Drift Velocity|6 Videos

  • CONSTRAINED MOTION

    MOTION|Exercise EXAMPLES|12 Videos

  • ELASTICITY

    MOTION|Exercise EXERCISE -3|60 Videos

Similar Questions

Explore conceptually related problems

A negligibly small current is passed through a wire of length 15 m and uniform cross-section 6.0 xx 10^(-7)Omega m^(2) , and its resistance is measured to be 5.0 Omega . What is the resistivity of the material at the temperature of the experiment ?

A negligibly small current is passes through a wire of length 15 m and of uniform cross-section 6.0 xx 10%-7 m^2 and its resistance is measured to be 5.0 Omega . What is the resistivity of the material at the temperature of the experiment ?

A copper wire of length 2m and area of cross-section 1.7 xx 10^(-6)m^(2) has a resistance of 2 xx 10^(-2) ohms. Calculate the resistivity of copper.

The resistance of a wire of length 80 cm and of uniform area of cross-section 0.025 cm^2 , is found to be 1.50 ohm. Calculate the resistivity of the wire.

A current i passes through a wire of length l , radius of cross-section r and resistivity rho . The rate of heat generation is

Calculate the conductivity of a wire of length 2 m, area of cross-sectionl 2 cm^(2) and resistance 10^(-4) Omega .

A nichrome wire of length 100 cm and area of cross-section 0.5 m m^(2) has a resistance of 2.2 Omega . The resistivity of nichrome is

A wire 1.0 m long, 0.2 mm in diameter, has a resistance of 10 Omega . Calculate the resistivity of its material.