Two copper wires have equal cross-sectional area and lengths of 2.0m and 0.50 m, respectively. What is the ratio of the current through the shorter wire to that through the longer if both have the same applied voltage? Please explain. Thank you
Two copper wires have equal cross-sectional area and lengths of 2.0m and 0.50 m, respectively. What...
Four copper wires of equal lengths are connected in series. Their cross sectional areas are 1.00cm², 2.00cm², 3.00cm² and 5.00cm². If the voltage of 120V is applied to the arrangement, what is the voltage across the 2.00cm² wire? NB: length of wires could be anything but the length is the same
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
Six copper wires have the lengths and cross-sectional areas listed below. The resistance R of each segment can be calculated using, R = pL/ A Where p is the resistivity, L is the length of the wire, and A is the wire's cross-sectional area. Rank the resistances of the wires from lowest to highest.
At the same temperature, two wires made of pure copper have different resistances. The same voltage is applied at the ends of each wire. The wires may differ in Check all that apply. length. cross-sectional area. resistivity. amount of electric current passing through them
Two square wires are composed differently, see the figure of their cross-sections. Wire 1 is a square wire of material A but with a circular center of material C. The diameter of the circular inside is equal to the length of side of the square. The second square wire has the same cross-sectional area as the first but is entirely comprised of material A. Both wires are the same length and setup to have the same temperature difference maintained between...
A copper wire of cross-sectional area of 8.2x10^-7 m^2 has a resistance of 1.11 Ω. a). How long is the wire? b). If a potential of 12.0 V is applied across the ends of the wire, what current will flow through the wire? c). How much electrical power is supplied to the spool? d). How many electrons (N) pass through this wire in 1.00 minutes?
two copper conductors have equal length. the cross-sectional area of one conductor is three times that of the other. If the resistance of the conductor having smaller cross-sectional area is 20 ohms, what is the resistance of the other?
A copper wire of 1.0 cross-sectional area carries a current of 2.72 A What is the magnitude of the drift velocity in m/s) for an electron in the wire? The number of free charge carries of copper per unit volume is 8.0x10 electrons/m! A. 2.0E10+
What current in a copper wire with a cross-sectional area of 7.08 x 10 m2 would result in a drift speed equal to 4.51 x 10-4 m/s? Need Help? Talk to a Tutor
What is the resistance of a copper wire 1.2 m in length whose cross-sectional area is 3.0 x 10-6 m2 at 35oC?