Resistivity and density of the material are unchanged

Assignment Help Physics

Reference no: EM13562868

A wire with a resistance of 7.1 Ω is drawn out through a die so that its new length is 5 times its original length. Find the resistance of the longer wire, assuming that the resistivity and density of the material are unchanged.

Reference no: EM13562868

Questions Cloud

Explain the density of the vinegar solution : The vinegar solution you can purchase at the store is about 5% by mass acetic acid. It will be easier for you to assess your results if you convert 5% by mass acetic acid from weight percent to molarity since your experimental results will be in m..

Compute the surface charge density on the belt : A charged belt, 43 cm wide, travels at 26 m/s between a source of charge and a sphere. The belt carries charge into the sphere at a rate corresponding to 81 µA. Compute the surface charge density on the belt.

A fuse in an electric circuit is a wire : A fuse in an electric circuit is a wire that is designed to melt,and thereby open the circuit, if the current exceeds apredetermined value. Suppose that the material to be used in a fusemelts when the current density rises to 470 A/cm2.

Explain how you would know which reagent the moles of water : Show how the moles of water produced is related to the concentration of one of the reactants (either acetic acid or sodium hydroxide). Describe how you would know which reagent the moles of water is related to.

Resistivity and density of the material are unchanged : A wire with a resistance of 7.1 Ω is drawn out through a die so that its new length is 5 times its original length. Find the resistance of the longer wire, assuming that the resistivity and density of the material are unchanged.

Find the gravitational field strength on the surface of mars : A 250 kg space probe weighs 935N on thesurface of Mars. What is the gravitational field strength on the surface of Mars

What is the relative speed between the two rockets : A person on earth notices a rocket approaching from the rightat a speed of 0.75c and another rocket approaching from the left at0.65c. What is the relative speed between the two rockets

What is the gauge pressure at this faucet : The main water line enters a house on the first floor. The line has a gauge pressure of 1.9*10^5Pascal. A faucet on the second floor, 6.5m above the first floor,is turned off. What is the gauge pressure at this faucet?

Determine with what angular speed must it rotate : A rotating cylinder about 23 km in length and9.0 km in diameter is designed to be used as a space colony. With what angular speed must it rotate

User Account

All Pages