The resistance R of a conductor depends on its shape and physical dimensions and a property of the material called the resistivity p What does the resistivity of a material depend upon?  Assuming that the resistivity of copper is a quarter of that of aluminium and that the density of copper is three times that of aluminimium, find the ratio of the masses of copper and aluminium wires with the same length and the same resistance but with different cross - sectional areas .

A conductor carries a current that is decreasing exponentially with time. The current is modeled as I=I0et/ , where I0= 3.00 A is the current at timet = 0.00 s and =0.50 s is the time constant. How much charge flows through the conductor between t = 0.00 s and =3 ?

A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R. What is the new resistance if it is stretched to 4 times its original length while the Area is doubled? Group of answer choices Two times the original resistance Four times the original resistance Half of the original resistance A quarter of the original resistance

A conductor of cross-sectional area A, length I, and resistivity p has resistance R. What is the new resistance if it is stretched to 4 times its original length while the area is doubled? A quarter of the original resistance O Four times the original resistance Two times the original resistance Half of the original resistance

Resistivity of silver is less than that of tungsten. If a tungsten wire and a silver wire are having the same length and area of cross section, which of the following statements is true? Oa. Resistance of the tungsten wire is more than that of the silver wire O b. Resistance of the tungsten wire is less than that of the silver wire Oc Both wires are having the same resistance O d. From the given information, a conclusion cannot be made

The radius r of a wire grows linearly with its length I according to r(2) = a+x, where z is the distance from the thinner end of the wire with radius a. Express the resistance as a function of the resistivity of the material p, the length of the wire I and the radii a and b. View Available Hint(s ?

A wire of length L and cross-sectional area A has resistance R. What will be the resistance Rstretched of the wire if it is stretched to twice its original length? Assume that the density and resistivity of the material do not change when the wire is stretched.

Resistance depends on the size and shape of a conductor. We expect a long wire to have higher resistance than a short one (everything else being the same) and a thicker wire to have a lower resistance than a thin one. Resistance also depends on the intrinsic property of the conductor called the resistivity. If the resistivity of a particular wire is 12.08x10-8 N · m, the wire is 14.22mm in length, and the radius of the diameter of the wire is 1.33m, what is the resistance of the wire in units of Ohms (N)? Note: It is understood that the unit of your answer is in Ohms (), however do not explicitly include units in your answer. Enter only a number. If you do enter a unit, your answer will be counted wrong.

Find the ratio of the resistance of a copper wire to an aluminum wire if the length and diameter of the aluminum wire is twice the diameter of the copper.