1.
Part A
What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.45 Ω ? Express your answer using two significant figures.
2.
Part A
What is the maximum instantaneous power dissipated by a 3.4-hp pump connected to a 240-Vrms ac power source? 1 hp = 746 W.
Express your answer using two significant figures.
Part B
What is the maximum current passing through the pump?
Express your answer to two significant figures and include the appropriate units
3.
A 0.64-mm-diameter copper wire carries a tiny current of 2.9 μA . The molar mass of copper is 63.5 g/mole and its density is 8900 kg/m3. NA=6.02×1023.
Part A
Estimate the electron drift velocity. Assume one free electron per atom.
Express your answer to two significant figures and include the appropriate units.
1. Part A What is the diameter of a 1.00-m length of tungsten wire whose resistance...
plz keep in mind sig figures :) A 0.70-mm-diameter copper wire carries a tiny current of 2.6 uA . The molar mass of copper is 63.5 g/mole and its density is 8900 kg/m' NA = 6.02 x 1023 Part A Estimate the electron drift velocity. Assume one free electron per atom. Express your answer to two significant figures and include the appropriate units. uA ? vd = Value Units
A 0.68-mm-diameter copper wire carries a tiny current of 2.4 μA . The molar mass of copper is 63.5 g/mole and its density is 8900 kg/m3. NA=6.02×1023. Estimate the electron drift velocity. Assume one free electron per atom.
The resistance of a certain copper wire is 0.4 Ω. Determine the resistance of a tungsten wire having the same dimensions as the copper wire. Express your answer to three significant figures and include the appropriate units.
What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.45 Ω ?
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Problem 18.87 Copper wire of diameter 0.249 cm is used to connect a set of appliances at 120 V, which draw 1850 W of power total. The resistivity of copper is 1.68 x 10- 12 m. What power is wasted in 29.0 m of this wire? Express your answer to three significant figures and include the appropriate units. I MÅ BO ? Units P dissipated = Paissipated = | Value Submit Request Answer Part B What is your answer if...
1 Rev You want to produce three 1.00-mm-diameter cylindrical wires, each with a resistance of 5.00 N at room temperature, One wire is gold, one is copper, and one is aluminum. Refer to Table 25. 1 in the textbook for the resistivity values. Part A What will be the length of the gold wire? Express your answer with the appropriate units. L 161 m Correct Part B What will be the length of the copper wire? Express your answer with...