two wires, a and b, have the same length and are made of the same material, but wire a has one-half the resistance of wire b. what is the ratio of the diameters, da/db?
two wires, a and b, have the same length and are made of the same material,...
5. Two wires, A and B, are made of the same metal and have equal length, but the resistance of wire A is 3 times the resistance of wire B. How do their diameters compare? (5pt)
Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.5 mm. Conductor B is a hollow tube of outside diameter 7.4 mm and inside diameter 6.4 mm. What is the resistance ratio RA/RB , measured between their ends?
Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.1 mm. Conductor B is a hollow tube of outside diameter 3.7 mm and inside diameter 2.7 mm. What is the resistance ratio RA/RB , measured between their ends?
Two wires made of copper and aluminum have the same length and diameter. The wires are fused together end-to-end to form a single wire. A potential difference is applied to the ends of the wire by a battery so that current flows along the wire. What is the ratio of the electron drift velocity between the two metals, reported as ?
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
Two conducting wires of the same material are to have the same resistance. One wire is 22.0 m long and 0.45 mm in diameter. If the other wire is 0.27 mm in diameter, how long should it be?
Two conducting wires of the same material are to have the same resistance. One wire is 22.0 m long and 0.45 mm in diameter. If the other wire is 0.27 mm in diameter, how long should it be?
Two conducting wires of the same material are to have the same resistance. One wire is 21.0 m long and 0.37 mm in diameter. If the other wire is 0.27 mm in diameter, how long should it be?
Wires 1 and 2 are made of the same metal. Wire 2 has twice the length and twice the diameter of wire 1.a. What is the ratio p2/p1 of the resistivities of the two wires?b. What is the ratio R2/R1 of the resistances of the two wires?
4. Two conducting wires of the same material are to have the same resistance. One wire is 19.0 m long and 0.38 mm in diameter. If the other wire is 0.28 mm in diameter, how long should it be? ________ m