Now let's consider the resistance of speaker wire. Suppose you're hooking up a pair of stereo...
Suppose you are hooking up a pair of stereo speakers (A) You happen to have on some 20 m long peices of 16 gauge copper wire (diameter 1.3 mm); you use them to connect the speakers to the amplifier. These wires are longer than needed, but you just coil up the excess length instead of cutting them. What is the resistance of one of these wires? (B) To improve the performance of the system, you purchase 3.0 m long speaker...
a) what is the resistance of the wire in the solenoid? b) how much voltage would need to be applied to the solenoid to create a 5.00 mT magnetic field? Consider a solenoid made of copper wire. The solenoid is 5.00 cm in diameter and 30.0 cm in length. The copper wire has a diameter of 0.50 mm and is wound with 20 turns per cm. The resistivity of Cu is 1.72 Times 10-8 Ohm *m.
Suppose you have a 24 m long piece of copper wire with a 2.1 mm diameter and a resistivity of 1.72 × 10-8 Ω⋅m. What is the resistance of the copper wire, in ohms?
Calculate the resistance of a piece of 20-gauge gold wire 2.20 m long. The cross-sectional area of 20-gauge wire is 0.5176 mm2. Resistivity for ("calculator" notation, in ohm*meter) - aluminium: 2.65 e-8 copper: 1.72 e-8 gold: 2.24 e-8 iron: 9.71 e-8 nichrome: 1.00 e-6 platinum: 1.06 e-7 silver: 1.59 e-8 tungsten: 5.65 e-8
How much is the resistance of 50 ft if household 14 gauge Cu wire (1.63 mm in diameter)? Resistivity of Cu is 1.70 *10^-8 Ohm m, if the current 15 A is flowing in this wire, then how much is the voltage drop on it?
The diameter of Twelve Gauge copper wire is 2.052 mm. Calculate the resistance (in 2) of 4.52 km length of such wire used for power transmission. The resistivity of copper is 1.68 x 10-8 Am. Ω
2) Consider copper (o 5.7x10 S/m and u1) wires operating at 60 Hz and 100 MHz (a) Calculate the skin depth at each frequency (b) Estimate the resistance of a 0 Gauge wire (diameter-8.25 mm that is commonly used in homes) that is 10 meters long at both frequencies. Remember to compare the skin-depth to the wire diameter (c) For copper wires operating at 60 Hz what is roughly is the upper limit on the radius of a solid wire...
Now let’s see how temperature affects the resistance of copper wire. A length of 18 gauge copper wire with a diameter of 1.02 mm and a cross-sectional area of 8.20×10−7 m2 has a resistance of 1.02 Ω at a temperature of 20 ∘C. Find the resistance at 0 ∘C and at 100 ∘C. The temperature coefficient of resistivity of copper is 0.0039 (C∘)−1. On a hot summer day in Death Valley, the resistance is 1.15 Ω. What is the temperature?
1. A ductile metal wire has resistance R. Then the wire is stretched to three times its original(poin) length. The stretching shrinks the diameter of the wire, but does not affect its density or resistivity. What is the resistance of the stretched wire? O3R 2. A current of 1.50 A flows through the leads of an electric appliance. How long does it take for (1 point) 7.50 C of charge to pass through the leads? 0 2.00s 11.0 s 6.00s...
3.14 160 7. What is the resistance of a copper wire of length/= 10.9 m and diameter d= 1.30 mm? The resistivity of copper is 1.72 10-8Qm. o One brand of 12.0.Vautomotive battery used to be advertised as providing "600 cold-cranking amps."