Physics, asked by npafho3585, 1 year ago

Two copper wires of length ℓℓ and 2ℓℓhave radii r and 2r respectively. What is the ratio of their resistivity

Answers

Answered by kunalverma351

0

The resistivity of copper is constant. I guess you are asking about the resistance.R1R2=ρlAρ2lA'=ρlπr2ρ2lπ(2r)2=2

Previous Question

Next Question

Similar questions

Math, 7 months ago

A scale model of a rectangular building lot measures 7 feet by 5 feet. If the actual house will be built using a scale factor of 12, what is the area of the actual building lot?

Geography, 7 months ago

Is any one good at AP Human Geography and could zoom with me help me me with an assignment please??????

Math, 7 months ago

In figure, PQ is a diameter of the circle with centre O. If angle qor ...

Physics, 1 year ago

An object moving in a straight line with uniform acceleration, has initial speed of 2 m/s. After 8 seconds, it again has speed of 2 m/s but in opposite direction. The distance covered by the object is...

Physics, 1 year ago

Two blocks are attached with spring are placed on a horizontal smooth surface. Block a is placed in left side whose mass is 1 kilogram. Block b is in right side and its mass is 2 kilogram. A force of 5 newton is applied on 1 kilogram in left direction where as the force of 20 newton is applied on 2 kilogram in right direction. Find the maximum elongation in the spring. Spring constant is 100 n/m?

Biology, 1 year ago

Definition of phagocytosis...

Physics, 1 year ago

Photons of energy 2 eV and 2.5 eV successively illuminate a metal whose work function is 0.5 eV. The ratio of maximum speed of emitted electrons is...

English, 1 year ago

What is meaning unrelentingly...