Find resistivity of AB (A M 2 ΚΩ 3K M M 2K C B ΕΚΩ ААА ААА 12K-2
Q: Residential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for…
A: Given: diameter of the wire, d = 12 gauge=0.205 cm= 0.00205 m length of the wire, L = 1.90 m…
Q: L A 230-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,070…
A:
Q: An electrolyzer passes electric current through water, dissociating some of the water molecules and…
A: Diameter of tube (d) = 6.85 cmRadius of tube (r) = d2=6.85 cm2= 3.425 cm = 0.03425 m Current (i) =…
Q: What current flows through a 2.90 cm diameter rod of pure silicon that is 15.5 cm long, when 1000 V…
A: Solution: Given Values, The radius of the rod (r)=d2=2.90 cm2=0.0145 m Length of the wire…
Q: Two wires have the same resistance and radius. If the wires are made of platinum and copper with…
A: The expression for the required ratio of the lengths is,
Q: (a) A 33.9-m length of copper wire at 20.0°C has a radius of 0.27 mm. If a potential difference of…
A:
Q: 8) Wire is wrapped around the equator of an Earth globe of radius 15cm, making ten complete trips.…
A:
Q: Calculate the drift velocity of electrons in a copper wire with a diameter of 2.053 mm (12-gauge)…
A:
Q: The resistance R of a copper wire at temperature T = 25 °C is R = 112. Estimate the resistance at T…
A: The resistance R of a copper wire with a temperature T in C is R(T).Then, given that R(25)=11 and…
Q: A conducting wire of radius 1 mm is carrying a uniformly distributed current of 50 A. If the…
A: Given: Current, I = 50 Aelectron density, n = 8.1*1028 electrons/m3Radius of wire, r = 1 mm…
Q: Two wires have the same resistance and radius. If the wires are made of tungsten and copper with…
A: Given data The resistance of both the wires is equal to Rt = Rc The radius of both the wires rt =…
Q: color code i if using resistors 1 I (A) V (V) R (2) = V/I R. orange orange gold brown 0.02 4.979V…
A: If the resistors are in series R=R1+R2+R3= 8
Q: A battery-operated car utilizes a 12.0 V system. Find the charge the batteries must be able to move,…
A: The kinetic energy (KE) needed to accelerate the car from rest to 55 m/s can be calculated using the…
Q: A (b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is…
A:
Q: A heating element is made by maintaining a potential difference of 89.0 V across the length of a…
A: Given that; Potential difference, V=89 V Cross section, A=4.96×10-6m2 Resistivity, ρ=5×10-7Ωm a) We…
Q: Calculate the drift velocity of electrons when a current of 1.5 A flows in a copper wire of…
A: Given data: Current (I) = 1.5 A Cross-sectional area (A) = 5.0 mm2 = 5.0×10-6 m2 Electron density…
Q: Calculate the drift velocity of electrons in a 12-gauge copper wire (which has a diameter of 2.053…
A:
Q: (a) A 35.5-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of…
A:
Q: Find the current through resistor R₁: F E A с V=4.5 V R,=4 ΚΩ www. 2 + www V₂=3.2 V R,=8 ΚΩ B…
A: Given information: V1=4.5 V. V2=3.2 V. R1=8 kΩ. R2=8 kΩ. R3=8 kΩ.
Q: Don't use chat gpt It Chatgpt means downvote
A:
Q: A particular electronic-code lock provides over 500 billion combinations. Moreover, it can sustain…
A:
Step by step
Solved in 2 steps with 2 images
- (a) A 35.5-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Material Silver A Copper Gold Aluminum Tungsten Iron Platinum Lead Nichrome a Carbon Germanium Silicon Glass Hard rubber Sulfur Quartz (fused) Resistivity (2. m) 1.59 x 107 1.7 x 10-8 2.44 x 10-8 2.82 x 10 5.6 x 107 10.0 x 10 11 x 10 -8 -8 0.46 -8 640 22 x 10-8 3.5 x 107 -8 -8 150 x 10- -8 -5 1010-1014 ≈1013 1015 75 x 1016 Temperature Coefficient of Resistivity [(°C)-¹] 3.8 x 10 -3 3.9 × 10-3 3.4 x 10-3 3.9 x 107 5.0 x 10 4.5 x 10-3 3.92 x 10 -3 -3 0.4 x 107 -3 3.9 × 10-3 -3 -3 -0.5 x 107 -48 x 10-3 -75 x 10-3 aA nickel-chromium alloy commonly used in heating elements. (b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting…Check Pure water has very few ions (about 1.20 x 1014 ions per cubic centimeter), giving it a high resistivity, about 1.0 x 10 Q-m at 37.0°C. Blood plasma has a much lower resistivity of roughly 0.600 Q-m at 37.0°C due to the ions dissolved in the plasma. Assuming the resistivity depends only on the concentration of ions, how many ions per cubic centimeter are in blood plasma? 1019 ions/cm3 Ces acerA 2.0 mm diameter iron wire ( resistivity, p = 9.7 x 10-° 2-m) carries a current of 2.5 A. Determine the potential difference across this 20m length of the wire. (A 1.544 v B 0.544 v C) 1.618 v 0.618 v
- (a) A 34.9-m length of copper wire at 20.0°C has a radius of 0.29 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in the following table.) Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Material Resistivity(Ω · m) Temperature Coefficientof Resistivity [(°C)−1] Silver 1.59 ✕ 10−8 3.8 ✕ 10−3 Copper 1.7 ✕ 10−8 3.9 ✕ 10−3 Gold 2.44 ✕ 10−8 3.4 ✕ 10−3 Aluminum 2.82 ✕ 10−8 3.9 ✕ 10−3 Tungsten 5.6 ✕ 10−8 4.5 ✕ 10−3 Iron 10.0 ✕ 10−8 5.0 ✕ 10−3 Platinum 11 ✕ 10−8 3.92 ✕ 10−3 Lead 22 ✕ 10−8 3.9 ✕ 10−3 Nichromea 150 ✕ 10−8 0.4 ✕ 10−3 Carbon 3.5 ✕ 10−5 −0.5 ✕ 10−3 Germanium 0.46 −48 ✕ 10−3 Silicon 640 −75 ✕ 10−3 Glass 1010–1014 Hard rubber ≈1013 Sulfur 1015 Quartz (fused) 75 ✕ 1016 (b) If the wire is heated to 32.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire?Help!!!