Two copper wires are labeled A and B. B is twice as long and has twice...

Question

Question

Two copper wires are labeled A and B. B is twice as long and has twice the diameter of A. Which is true?

A has 4 times the resistance of B.

A and B have the same resistance.

A has 1/2 the resistance of B.

A has twice the resistance of B.

science physics

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

2) Two copper wires have the same voltage across them and the same length, but one...

2) Two copper wires have the same voltage across them and the same length, but one wire has twice the diameter as the other. How much power is dissipated in the wire with twice the diameter compared to the other wire?A) 1/4 as much B) 1/2 as much C) the same amount D) twice as much E) four times as much
Two wires have the same diameter, but one is made of copper and the other of...

Two wires have the same diameter, but one is made of copper and the other of aluminum. The copper wire is 2.50 m long and its resistance is 1.85 times that of the aluminum wire. How long is the aluminum wire?
Two copper wires have the same length but different cross sectional areas. The cross-sectional area of...

Two copper wires have the same length but different cross sectional areas. The cross-sectional area of wire 1 is A, and that of wire 2 is 2A. How are the resistances of the two wires related? Choose the correct answer from the following choices. Wire 1 has four times the resistance of Wire 2 Wire 1 has half the resistance of Wire 2 The are the same. Wire 1 has twice the resistance of Wire 2

The picture shows a battery connected to two wires in parallel. Both wires are made of...

The picture shows a battery connected to two wires in parallel. Both wires are made of the same material and are of the same length, but the diameter of wire A is twice the diameter of wire B. True or False for the following: 1) The resistance of wire B is four times as large as the resistance of wire A. 2) The power dissipated in wire A is 16 times the power dissipated in wire B. 3) The voltage...
please answer both parts of this question (a & b). will upvote as long as I...

please answer both parts of this question (a & b). will upvote as long as I can read through the assistance, thanks in advance (a) Compute the voltage drop along a 20m length of copper wire that carries 12A current. The wire has diameter 1.628 mm. Resistivity of copper is p = 1.7 x 10-89m.s Hint: Use Ohm's law and the formula of resistance in terms of the resistivity. b) Two copper wires have the same resistance. If one has...
6. a) Two different wires (materials 1 & 2) have lengths 1 and 2 and associated...

6. a) Two different wires (materials 1 & 2) have lengths 1 and 2 and associated diameters di and If the resistance R of the wires is to be the same show the relationship between their diameters is given by dz =d, P2h VPL b) Using the above result, determine the diameter of a nichrome wire (p=96 x 10 - Qm) of length 4 mifit is to have the same resistance has a copper wire (p=1.72 x 10- m) whose...

3. Copper wire #1 has a length L and a radius b. Copper wire #2 has...

3. Copper wire #1 has a length L and a radius b. Copper wire #2 has a length 2L and a radius 2b. Which statement is true? (a) The total resistance of wire #1 is twice as high as that of wire #2. (b) The total resistance of wire #1 is equal to that of wire #2. ( The total resistance of wire #1 is half that of wire #2. (d) The total resistance of wire #1 is four times...
Two copper wires, one 1.80 times the diameter of the other, have the same current flowing...

Two copper wires, one 1.80 times the diameter of the other, have the same current flowing through them. If the thinner wire has a drift speed v1 and the thicker wire has a drift speed v2, what is the relationship between the drift speeds?
8. Two long straight copper wires of diameter d = 0.2 mm are parallel to each...

8. Two long straight copper wires of diameter d = 0.2 mm are parallel to each other, one above the other, at a distance of 1 mm (measured center to center). The mass density of copper is 8.96 g/cm3. a) Compute the weight of a wire, per meter. b) If you run a current / through both wires you could, in principle, suspend the lower wire, i.e. make the magnitude of the magnetic force on it equal to its weight....

Household wiring often uses 2.0-mm-diameter copper wires. The wires can get rather long as they snake...

Household wiring often uses 2.0-mm-diameter copper wires. The wires can get rather long as they snake through the walls from the fuse box to the farthest corners of your house. Household wiring often uses 2.0-mm-diameter copper wires. The wires can get rather long as they snake through the walls from the fuse box to the farthest corners of your house. What is the potential difference across a 15-m-long, 2.0-mm-diameter copper wire carrying an 9.0 A current? Express your answer to...