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A conductor is 10,000 m long and has a cross sectional area of 0.5 cm^2 Calculate...
A wire 2.60 m long with a cross-sectional area of 7.07x10-6 m2 is connected to a...
A wire 2.60 m long with a cross-sectional area of 7.07x10-6 m2 is connected to a 30.0 V power supply. If a current of 12.0 A is measured in the wire, a) what is the resistivity of the wire in ohm-meters? Answer in scientific notation. b) If this resistivity had been measured at 20.0 °C, what temperature, in Celsius, would we need to heat/cool the wire to for the resistance to be 4.25 Ω if the temperature coefficient of resistivity...
Calculate the resistance of a piece of 20-gauge gold wire 2.20 m long. The cross-sectional area...
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
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2...
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2 Ω at 20.0°C. If its resistance increases to 40.9 Ω at 27.5°C, what is the temperature coefficient of resistivity? (°C)−1
An aluminum cable with cross-sectional area 1.50 times 10^-6 m^2 is suspended from the ceiling. A...
An aluminum cable with cross-sectional area 1.50 times 10^-6 m^2 is suspended from the ceiling. A mass is suspended from the free end of the cable to keep the cable straight and at a certain length. If the temperature of the cable is reduced by 10 C degree, by how much should the suspended mass be increased so that the length of the cable remains the same? The coefficient of linear expansion for aluminum is alpha = 23 times 10^-6...
2. The south pole of a bar magnet is brought close to a 250s-turn/m, 60-cm long...
2. The south pole of a bar magnet is brought close to a 250s-turn/m, 60-cm long copper solenoid with a radius of 7 cm. The wire has a cross-sectional area of 1.33 x 105 m² and is being kept at 25°C. Copper wire has a resistivity of 1.72 x 10% Om at 20°C and a temperature coefficient of resistivity of 3.9 x 10C!. If there is an induced current of 3 A after 0.2 s, what is the strength and...
"0000" gauge copper wire has a cross-sectional radius of 2.6cm. The resistivity of copper is 1.72...
"0000" gauge copper wire has a cross-sectional radius of 2.6cm. The resistivity of copper is 1.72 times 1-8ohmm. The circumference of the earth at the equator is 4.0 times 107m. What is the resistance of a piece of "0000"gauge wire that has been wrapped around the earth at the equator? 1200 ohm 840 ohm 320 ohm 0.032 ohm 0.084 ohm Select the following statement which is true about current flow. Select One of the Following: Current flows along lines of...
The resistivity of a 1.0 m long wire is 1.72 × 10-8 ?m and its cross sectional area is 2.0 ×...
The resistivity of a 1.0 m long wire is 1.72 × 10-8 Om and its cross sectional area is 2.0 × 10-6 m2. If the wire carries a current of 0.20 A, what is the voltageacross the wire?a) 10 mVb) 17 mVc) 0.90 mVd) 1.7 mVe) 90 mV
The resistance of a 1.50 m long copper wire, with a cross-sectional area of 7.06 x...
The resistance of a 1.50 m long copper wire, with a cross-sectional area of 7.06 x 10-6 m2, is measured at different temperatures starting at 20.0 oC and ending at 70.0 oC. The given table shows those resistances as a function of temperature differences from the initial temperature. Generate an accurate plot of the resistance as a function of DT. Determine the resistivity of copper from your plot and compare to the accepted value for copper’s resistivity. Determine the temperature...
Ex. 4 A hole of cross-sectional area 100 cm^2 is cut in a piece of steel...
Ex. 4 A hole of cross-sectional area 100 cm^2 is cut in a piece of steel at 20 degrees C. What is the area of the hole if the steel is heated from 20 degrees C to 100 degrees C? Ex5. A beaker is filled with 2000 cm^3 of turpentine at room temp. of 20 degree C. If beaker and contents are put in a refrigarator so that the temp. becomes 5 degrees C, what is the new volume of...
nand a cross sectional area of 0.270 mm2. If the resistivity of copper is 1.70 x...
nand a cross sectional area of 0.270 mm2. If the resistivity of copper is 1.70 x 10 m and a potential difference of 0.500 V is maintained across its lenqth, determine the current in has a length of 1.50 the wire (In A) Need Help? Read It -1 points SerPSE10 26.3.0P010 M Ask Your Teacher My Notes f the magnitude of the drift velocity of free electrons in a copper wire i 10 m/s. what the electric field in the...
An aluminum cable with cross-sectional area 1.50 times 10^-6 m^2 is suspended from the ceiling. A mass is suspended from the free end of the cable to keep the cable straight and at a certain length. If the temperature of the cable is reduced by 10 C degree, by how much should the suspended mass be increased so that the length of the cable remains the same? The coefficient of linear expansion for aluminum is alpha = 23 times 10^-6...
2. The south pole of a bar magnet is brought close to a 250s-turn/m, 60-cm long copper solenoid with a radius of 7 cm. The wire has a cross-sectional area of 1.33 x 105 m² and is being kept at 25°C. Copper wire has a resistivity of 1.72 x 10% Om at 20°C and a temperature coefficient of resistivity of 3.9 x 10C!. If there is an induced current of 3 A after 0.2 s, what is the strength and...
"0000" gauge copper wire has a cross-sectional radius of 2.6cm. The resistivity of copper is 1.72 times 1-8ohmm. The circumference of the earth at the equator is 4.0 times 107m. What is the resistance of a piece of "0000"gauge wire that has been wrapped around the earth at the equator? 1200 ohm 840 ohm 320 ohm 0.032 ohm 0.084 ohm Select the following statement which is true about current flow. Select One of the Following: Current flows along lines of...
nand a cross sectional area of 0.270 mm2. If the resistivity of copper is 1.70 x 10 m and a potential difference of 0.500 V is maintained across its lenqth, determine the current in has a length of 1.50 the wire (In A) Need Help? Read It -1 points SerPSE10 26.3.0P010 M Ask Your Teacher My Notes f the magnitude of the drift velocity of free electrons in a copper wire i 10 m/s. what the electric field in the...
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