Tipler6 25.P.033.soln.
A 10-gauge copper wire and a 14-gauge copper wire are welded together end to end. The wires carry a current of 15.8 A.
(a) If there is one free electron per copper atom in each wire, find the drift velocity of the electrons in each wire. (Let the cross-sectional area of 10-gauge and 14-gauge wire be 5.261 mm2 and 2.081 mm2, respectively.)
10 - Gauge Wire _________ mm/s
14 - Gauge Wire _________ mm/s
(b) What is the ratio of the magnitude of the current density in
the length of 10-gauge wire to the magnitude of the current density
in the length of 14-gauge wire?
J10 / J14 =
Tipler6 25.P.033.soln. A 10-gauge copper wire and a 14-gauge copper wire are welded together end to...
Tipler6 25.P.033.soln. A 10-gauge copper wire and a 14-gauge copper wire are welded together end to end. The wires carry a current of 15.8 A. (a) If there is one free electron per copper atom in each wire, find the drift velocity of the electrons in each wire. (Let the cross-sectional area of 10-gauge and 14-gauge wire be 5.261 mm2 and 2.081 mm2, respectively.) 10-gauge wire mm/s 14-gauge wire mm/s (b) What is the ratio of the magnitude of the...
Tipler6 25.P.031.soln. A 10 gauge copper wire carries a current of 23 A. Assuming one free electron per copper atom, calculate the drift velocity of the electrons. (The cross-sectional area of a 10-gauge wire is 5.261 mm2.) mm/s
A 14-gauge copper wire has a diameter of 1.684 mm. What magnitude current flows in amperes when the drift velocity is 1.20 mm/s? (The density of free electrons in copper is 8.34 ✕ 1028 e−/m3.).) ____________ A
A 10.0 cm length of copper wire has a uniform cross-sectional area of 1.0 mm2. If the drift speed of electrons in the wire is: 2.0x10-4 m/s and the electrons all move directly along the wire, what is the magnitude of the current density? What is the total current carried by the wire.
4a. The resistance of a 5.0 meter length of 14-gauge copper wire is 8.1 x 10 ohms/meter. How much energy loss occurs per second in the wire when a current of 20.0 amps is applied? Assume that the cross-sectional area is 2.1 mm', what is the shortest time in which the applied current could heat the wire by 15.0°C? You may assume that the density of copper is 8.92 x 10 kg/m and its molar heat capacity is 6.0 calories/mole/K....
20.16 - Current A 14.0-gauge copper wire has a diameter of 1.628 mm. What magnitude current flows when the drift velocity is 1.41 mm/s? (See Example 20.3 for useful information.) 22.2A Submit Anser Incorrect. Tries 3/10 Previous Tries
20.16 - Current A 14.0-gauge copper wire has a diameter of 1.628 mm. What magnitude current flows when the drift velocity is 1.41 mm/s? (See Example 20.3 for useful information.) 22.2A Submit Anser Incorrect. Tries 3/10 Previous Tries
A number 14 copper wire has a diameter of 1.628 mm. Calculate the resistance of a 40.0 m long piece of such wire. (Use 1.72x108 2m for the resistivity of copper.) Submit Answer Tries 0/99 For safety, the National Electrical Code limits the allowable amount of current which such a wire may carry. When used in indoor wiring the limit is 15.0 A for rubber insulated wire of that size. How much power would be dissipated in thé wire of...
Need help on these 3. stuck 1. A copper wire has a diameter of 2.415 mm. What magnitude current flows when the drift velocity is 3.79 mm/s? Take the density of copper to be 8.92x103 kg/m3. Give your answer in Amperes? 2. A jeweler uses a draw plate to stretch a wire to 9 times its original length. By what factor does its resistance increase?
A number 14 copper wire has a diameter of 1.628 mm. Calculate the resistance of a 37.0 m long piece of such wire (Use 1.72x108 m for the resistivity of copper.) Submit Answer Tries 0/99 For safety, the National Electrical Code limits the allowable amount of current which such a wire may carry. When used in indoor wiring, the limit is 15.0 A for rubber insulated wire of that size. How much power would be dissipated in the wire of...