What is the resistance of gold wire at 150°C , if it is 25.0 m long with a 0.100 mm diameter and has a resistance of 77.7 Ω at 20.0°C ?
What is the resistance of gold wire at 150°C , if it is 25.0 m long...
Calculate the resistance of a piece of gold wire that is 1.4 m long and has a diameter of 2.8 mm.
What is the resistance of a 61.1-m-long aluminum wire that has a diameter of 7.77 mm? The resistivity of aluminum is 2.83x 10-8 Ω . m. resistance:
A gold wire is 2.40 m long and 0.760 mm in diameter, and it carries a current of 1.44 A. What is the potential difference between the ends of the wire? Let p gold = 2.44 x 10^-8 Ω * m.
The resistance of gold is 2.8 × ? at a temperature of 20°C. A gold wire, 1.8 mm in diameter and 14 cm long, carries a current of 600 mA. The power dissipated in the wire is closest to: A) 33 mW B) 1.0 mW C) 1.7 mW D) 1.8 mW E) 55 mW
A certain laboratory experiment requires an aluminum wire of length of 34.0 m and a resistance of 2.60 Ω at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 ✕ 10−8 Ω · m.) ______ mm
1. The terminals of a 0.70 V watch battery are connected by a 130-m-long gold wire with a diameter of 0.100 mm . What is the current in the wire? Express your answer using three significant figures in mA 2. A waterbed heater uses 500 W of power. It is on 35 % of the time, off 65 % .What is the annual cost of electricity at a billing rate of $0.12 per kWhr? Express your answer using two significant...
Materials Reading (a) Of what materal is a wire made, if is 20.0 m long with a 0.140 mm diameter and has a resistance of 22.3 at 20.0C O copper O silver gold (b) What is its resistance (in Q) at 1709C7 Additional Materials a Reading Submit Answer Seve Progress Pracice Another Version Submit Assignment Save Assignment Progress Home My Assignements Extension Request acBook Air
A gold wire is 4.5 m long and 0.45 mm in diameter. What is its resistance? (The sheet from my professor.) TABLE 21-1 Resistivities Substance Insulators Quartz (fused) Rubber Glass Semiconductors Silicon* Germanium* Conductors Lead Iron Tungsten Aluminum Gold Copper Copper, annealed Silver Resistivity, p (2 m) 7.5 × 1017 1 to 100 x 1013 1 to 10,000 x 109 0.10 to 60 0.001 to 0.5 22 × 10-8 9.71 × 10-8 5.6 x 10-8 2.65 × 10-8 2.20 x...
Calculate the ratio of the resistance of 12.0 m of aluminum wire 2.0 mm in diameter, to 20.0 m of copper wire 2.5 mm in diameter. Assume electrical resistivity of aluminum is 2.65×10−8 Ω⋅m and electrical resistivity of copper is 1.68×10−8 Ω⋅m. Answer in RAl/RCu =
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