A wire of radius r1 and length l1 has a resistance R1 = 27.0 ohms. Find...
A wire of radius r1 and length l1 has a resistance R1 = 27.0 ohms. Find the resistance of another wire made of the same material, with a radius r2 = 4*r1, and length l2 = l1/3.
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A wire of radius r1 and length l1 has a resistance R1 = 27.0
ohms. Find...
A wire of initial length Ly and radius to has a measured resistance of 2 Ohms....
A wire of initial length Ly and radius to has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r-0270 What is the new resistance of the wire? Hint: Assume the radius and the length of the wire can change. 1.250 Ohms 1875 Ohms 69444 Ohms 3,375 Ohms None of the above
the resistance of a wire is 25 ohms. another wire of the same material and same...
the resistance of a wire is 25 ohms. another wire of the same material and same temperature has a diameter twice as great and length six times as great. find resistance of the second wire? answer is 16.67 ohms solution please
The resistance of a certain wire is 20 Ohms. Another wire of the same material has...
The resistance of a certain wire is 20 Ohms. Another wire of the same material has a diameter 1/3 as great and twice the length. What is the resistance of the second wire?
A wire of initial length L0 and radius r0 has a measured resistance of 2 Ohms....
A wire of initial length L0 and radius r0 has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r = 0.2r0. What is the new resistance of the wire? Assume the radius and the length of the wire can change (Assume the radius and the length of the wire can change) 3375 Ohms 69444Ohms 1875Ohms 1250Ohms
A length of wire has a resistance of 6.6 Ohms. The wire is then stretched uniformly...
A length of wire has a resistance of 6.6 Ohms. The wire is then stretched uniformly to twice its length. The resistance is now:
Two cylindrical resistors are made of copper (p=1.72x10^-8 ohm m). R1 has radius 2.00mm and length...
Two cylindrical resistors are made of copper (p=1.72x10^-8 ohm m). R1 has radius 2.00mm and length 1.00m. R2 has twice the radius of R1. (a) Resistance of R1? (b) length of R2 if it has the same resistance (c) find how much current flow if either resistor were connected to 15V battery. (d) what is the current density through each resistor? (e) what is the current out of the battery if the resistors are connected in series?
A wire of length L and radius r has a resistance R. If the length and...
A wire of length L and radius r has a resistance R. If the length and radius of this wire are doubled, the new resistance: remains the same. doubles. quadrables. drops to 1/2 its original value. drops to 1/4 its original value.
A Si wire of diameter 2μm and length 200 micrometers has a resistance of 1000 ohms....
A Si wire of diameter 2μm and length 200 micrometers has a resistance of 1000 ohms. Determine the resistivity of that Si in terms of ohm-cm. Suppose you make the same wire using copper, what should be its resistance?
Question 1 3 pts A wire of initial length Lo and radius ro has a measured...
Question 1 3 pts A wire of initial length Lo and radius ro has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r-0.270 What is the new resistance of the wire? Hint: Assume the radius and the length of the wire can change. 1.250 Ohms 1,875 Ohms 69444 Ohms 3,375 Ohms None of the above Next →
A certain wire has a resistance of 140 Ω. What is the resistance of a second...
A certain wire has a resistance of 140 Ω. What is the resistance of a second wire, made of the same material, that is 1/3 as long and has 1/5 the diameter? (answer in ohms)
A wire of initial length Ly and radius to has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r-0270 What is the new resistance of the wire? Hint: Assume the radius and the length of the wire can change. 1.250 Ohms 1875 Ohms 69444 Ohms 3,375 Ohms None of the above
A wire of length L and radius r has a resistance R. If the length and radius of this wire are doubled, the new resistance: remains the same. doubles. quadrables. drops to 1/2 its original value. drops to 1/4 its original value.
Question 1 3 pts A wire of initial length Lo and radius ro has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r-0.270 What is the new resistance of the wire? Hint: Assume the radius and the length of the wire can change. 1.250 Ohms 1,875 Ohms 69444 Ohms 3,375 Ohms None of the above Next →
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