How long does it take electrons to get from a car battery to the starting motor? Assume the current is 330 A and the electrons travel through a copper wire with cross-sectional area 0.300 cm² and length 1.00 m. The number of charge carriers per unit volume is 8.49 x 10²28 m-3.

How long does it take electrons to get from a car battery to the starting motor? Assume the current is 330 A and the electrons travel through a copper wire with cross-sectional area 0.300 cm² and length 1.00 m. The number of charge carriers per unit volume is 8.49 x 10²28 m-3.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 8P: A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a...

See similar textbooks

Related questions

Q: A conductor has a cross-sectional area of 2.3×106 m² and the number of free electrons per unit…

A: Cross-sectional area is A = 2.3×10-6 m2 Electron density is n = 8.5×1028 electron/m3 Current, I =…

Q: A copper wire has 8.48×1028 free electrons per m3. If the cross sectional area of the wire is 3x10-6…

Q: The density of free electrons in a cylindrical metal wire is 7×1028 m-3. The diameter d = 8.41 mm…

Q: A copper wire has a cross sectional area A1 = 10-6m² and has a density of charge carriers of 1029…

A: The resistance of a conductor is given by: R = ρLA where, ρ is the resistivity of the conductor, L…

Q: What current flows through a 2.45-cm-diameter rod of pure silicon that is 21.5 cm long, when 1.00 x…

A: Given: The diameter of the wire is 2.45 cm. The length of the wire is 21.5 cm. The potential…

Q: A small but measurable current of 8.3 x 1010 A exists in a copper wire whose diameter is 2.9 mm. The…

A: Current (i) = 8.3×10-10 A diameter (d) = 2.9 mm Radius (R) = 1.45 mm = 0.00145 m n = 8.49×1028 m-3

Q: If a metallic wire of cross sectional area 4.0 x 10-6 m2 carries a current of 6.0 A and has a mobile…

Q: A current of 4.82 A exists in a 12.4-2 resistor for 4.60 min. (a) How much charge and (b) how many…

Q: A copper wire has a circular cross-section with a radius of1.25 mm. (a) If the wire carries a…

A: Given:Radius of the copper wire = 1.25 mm = 0.00125 mCurrent = 3.70 AFor Copper = n = 1.10x1029…

Q: A typical wire for laboratory experiments is made of copper and has a radius 0.815 mm. Calculate the…

A: Given: radius, r = 0.815 mm Current, i = 1 A density of copper, d = 8.93 g/cm3 m = 63.5 g/mol

Q: A cylindrical conducting wire which is 342.57cm long, 85.39mm thick and resistivity of 3.13Ω.m,…

A: Given data:

Q: A small but measurable current of 3.0 x 10 10 A exists in a copper wire whose diameter is 2.4 mm.…

Q: A conductor has a cross-sectional area of 2.3x106 m2 and the number of free electrons per unit…

A: 0.29 mm/s

Q: A copper wire has a circular cross section with a radius of 1.01 mm. HINT (a) If the wire carries a…

Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current…

A: Given: The current is I = 310 A. Cross sectional area of wire is, The length of the wire is L =…

Q: A 1.00-mm-radius, cylindrical copper wire carries a current of 8.00 A. If each copper atom in the…

A: The correct answer is option (c) i.e. 0.187 mm/s

Q: When a current flows in an aluminum wire of diameter 4.57 mm, the drift speed of the conduction…

A: Given: Diameter, d=4.57 mm, radius r=4.75 mm2=2.285×10-3 m Drift speed ,vd=0.000291 m/s Conduction…

Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current…

A: Given data The current in the circuit is given as I = 340 A. The cross-sectional area is given as A…

Q: In a wire with a 2.63 mm² cross-sectional area, 5.51 × 1020 electrons flow past any point during…

A: Given data: Cross sectional area (A) = 2.63 mm2 = 2.63×10-6 m2 Number of electrons (n) = 5.51×1020…

Q: A high-voltage copper transmission line with a diameter of 1.40 cm and a length of 120 km carries a…

Q: Calculate the drift velocity (in x1o-6 m/s) of electrons in a silver cylindrical conductor with a…

Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current…

A: Time taken by electrons is,

Q: A current of 2.0 A is flowing in a typical extension cord of length 3.0 m. The cord is made of…

A: Given data: Current I=2.0A Length l=3.0m diameter d=1.50mm charge of an electron e=1.6×10-19C…

Q: A copper wire of cross-sectional area 1.00 mm2 has a current of 7.40 A flowing along its length.…

A: number density n = (1.3×density×NA )/molar mass n = (1.3×9000×6.02×1023 )/0.064 n = 1.1×1029

Q: A 12 gauge copper wire has a cross sectional area of 3.31 x 10-6 m2. What is the drift velocity of…

Q: When a current flows in an aluminum wire of diameter 2.83 mm, the drift speed of the conduction…

Q: A copper wire of 3mm diameter with conductivity of 6.7 * 10' (Q.m) , and electron mobility of 0.0064…

Q: When a current flows in an aluminum wire of diameter 4.67 mm,4.67 mm, the drift speed of the…

A: Radius of the aluminium wire(r)=Diameter of the wire2=4.67×10-32=2.335×10-3mArea of the…

Q: A copper wire has a circular cross section with a radius of 1.81 mm. HINT Apply the relation between…

Q: A conductor has a cross-sectional area of 2.3X10-6 m2 and the number of free electrons per unit…

Q: A copper wire of cross-sectional area 1.40 mm² has a current of 3.90 A flowing along its length.…

Q: A copper wire has a square cross-section of 2.5 mm on a side. The wire is 3.5m long and carries a…

A: Given, side of a square cross section a=2.5mm=2.5×10-3m, Length of wire L=3.5m, Density of free…

Q: How long does it take electrons to get from a car battery to the starting motor? Assume the current…

Q: A conductor has a cross-sectional area of 2.3×10-6 m² and the number of free electrons per unit…

A: The given values are, A=2.3×10-6 m2n=8.5×1028 /m3I=12.3 AQ=1.6×1019 C

Q: A small but measurable current of 7.6 x 10 10 A exists in a copper wire whose diameter is 3.2 mm.…

Q: The conduction electrons in a cylindrical, current-carrying wire have a drift velocity of 0.35 mm/s.…

A: Given Drift velocity vd = 0.35 mm/s = 0.35 × 10-3 m/s Radius of wire r = 1 mm = 10-3 m Number of…

Q: What current flows through a 2.45-cm-diameter rod of pure silicon that is 21.5 cm long, when 1.00 x…

Q: A 1.00-mm-radius, cylindrical copper wire carries a current of 8.00 A. If each copper atom in the…

A: The average velocity obtained by charged particles, such as electrons, in a material owing to an…

Q: In a wire with a 2.17 mm² cross-sectional area, 7.19 × 1020 electrons flow past any point during…

Q: An aluminum wire having a cross-sectional area equal to 2.00 x 106 m2 carries a current of 3.50 A.…

A: Given: Cross sectional area A = 2.0×10-6 m2 Current in wire I = 3.5 A. Density of aluminum wire =…

Q: A cylindrical conducting wire which is 173.67cm long, 45.65mm thick and resistivity of 7.70.m, (a)…

Q: If a current of 5A passes through a conductor with a resistance of 7 Ω, 3 minutes of walking, How…

A: Current, Resistance, Time, Charge on an electron,

Q: A typical wire for laboratory experiments is made of copper and has a radius 0.815 mm. Calculate the…

A: Firstly number of free electrons per unit volume will be calculated as follows: Molar mass of…

Q: A 1.00-mm-radius, cylindrical copper wire carries a current of 8.00 A. If each copper atom in the…

Q: A conductor has a cross-sectional area of 2.3x106 m2 and the number of free electrons per unit…

A: .

Q: A copper wire of cross-sectional area 1.30 mm2 has a current of 7.10 A flowing along its length.…

A: Given data: - The cross-sectional area of copper wire is A = 1.30 mm2. The current in the wire is…

Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

How long does it take electrons to get from a car battery to the starting motor?
Assume the current is 330 A and the electrons travel through a copper wire with
cross-sectional area 0.300 cm² and length 1.00 m. The number of charge carriers per
unit volume is 8.49 × 1028 m-³.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Answer

VIEW

Explanation

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

If the current carried by a conductor is doubled, what happens to (a) the charge carrier density, (b) the current density, (c) the electron drift velocity, and (d) the average time interval between collisions?
An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the absolute value of the charge density in the wire? (b) What is the drift velocity of the electrons? (c) What would be the drift velocity if the same gauge copper were used instead of aluminum? The density of copper is 8.96 g/cm3 and thedensity of aluminum is 2.70 g/cm3. The molar mass ofaluminum is 26.98 g/mol and the molar mass of copper is 63.5 g/mol. Assume each atom of metal contributes one free electron.
A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.600 mm2. What is the current in the wire?
Consider a wire of a circular cross-section with a radius of R = 3.00mm. The magnitude of the currentdensity is modeled as J=cr2=5.00106Am4r2 . Whatis the current through the inner section of the wire from the center to r = 0.5R?
Taking R = 1.00 k and = 250 V in Figure P21.49, determine the direction and magnitude of the current in the horizontal wire between a and e. Figure P21.49
A copper wire has a circular cross-section with a radius of1.25 mm. (a) If the wire carries a current of 3.70 A, findthe drift speed of electrons in the wire. (Take the density ofmobile charge carriers in copper to be n= 1.10 x 1029 electrons/m3.) (b) For the same wire size and current, find thedrift speed of electrons if the wire is made of aluminum withn= 2.11 x 1029 electrons/m3.
When a current flows in an aluminum wire of diameter 2.83 mm, the drift speed of the conduction electrons is 0.000147 m/s.How many electrons are flowing past a given point each second? The conduction electron density in aluminum is 6.00×1028 m−3.
What current flows through a 2.74 cm diameter rod of pure silicon that is 25.0 cm long, when 1000 V is applied to it? (Such a rod may be used to make nuclear particle detectors, for example.) The resistivity of pure silicon is 2.30 103 Ω · m. _____A