Can you handle my drift? A current is travelling along a wire. The cross-sectional area of the wire suddenly increases by 15%. If the current and the free-electron density are maintained, what is the new drift velocity of the electrons in terms of the initial drift velocity V₁? A 23 sia si- nia aix OB 20 OC OD 20 Clear my choice

Can you handle my drift? A current is travelling along a wire. The cross-sectional area of the wire suddenly increases by 15%. If the current and the free-electron density are maintained, what is the new drift velocity of the electrons in terms of the initial drift velocity V₁? A 23 sia si- nia aix OB 20 OC OD 20 Clear my choice

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 81CP: A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The...

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Check Your Understanding In Example 9.4, the drift velocity was calculated for a 2.053-mm diameter (12-gauge) copper wire carrying a 20-amp current. Would the drift velocity change for a 1.628-mm diameter (14-gauge) wire carrying the same 20-amp current?
A 10-gauge copper wire has a cross-sectional area A=5.26mm2 and carries a current of I=5.00A . The adensity of copper is =89.50g/cm2 . One mole ofcopper atoms (6.021023atoms) has a mass ofapproximately 63.50 g. What is the magnitude of the drift velocity of the elections, assuming that each copper atom contributes one free electron to the current?
A bird lands on a bare copper wire carrying a current of 32 A. The wire is 6 gauge, which means that itscross-sectional area is 0.13 cm2. (a) Find the difference in potentialbetween the bird’s feet, assuming they are separated by a distanceof 6.0 cm. (b) Will your answer to part (a) increase or decrease ifthe separation between the bird’s feet increases? Explain.
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27.64. Please help with the following problem. I attached a screeshot of it as well. An aluminum wire consists of the three segments shown in the following figure. The current in the top segment is 13A Part A For each of these three segments, find the current 'I'. (It should be equal to just one current, i.e. find Itop, Imid, Ibottom = ? ) Part B For each of these three segments, find the current density J. Jtop,Jmid,Jbot Part C For each of these three segments, find the electric field E. Etop,Emid,Ebot Part D For each of these three segments, find the drift velocity vd. (vd)top,(vd)mid,(vd)bot Part E For each of these three segments, find the electron current i. itop,imid,ibot
A current of 80.2 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 11.0 min? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. electrons(b) In what direction do the electrons travel with respect to the current? opposite directionThe magnitude is zero. same direction
Can you help and show all work ? The diameter of a copper wire is 0.082in. Suppose the maximum safe current it can carry is 22.9A. At this current, what is the drift velocity of the electrons (in um (The number of electron carriers in 1.0cm3 of copper is 8.5 × 1022
During the 5.05 min a 4.84 A current is set up in a wire, how many coulombs pass through any cross section across the wire's width and figure out how many electrons pass through any cross section across the wire's width??
A copper wire has a diameter of 2.0 mm and a length of 3.0 m. It carries acurrent of 6.3 A. The density of free electrons in copper is 8.5×1028electrons per cubic meter and resistivity of copper is 1.7×10-8Ω.m.d )What is the drift velocity of free electrons? Or calculatethe drift velocity of free electrons (or find the drift velocity of freeelectrons)e) Find the power dissipated as heat in the wire
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how does current flows in p type and n type semi-conductors?
You find a long silver metal rod with a circular cross-section and you measure its cross-section diameter to be 1 mm. You set the rod up in a way that a current of 2 A passes through its cross-section. The free-electron density of silver is 5.9 ×1028m-3. Given this information, what is the magnitude of the drift speed of the electrons flowing in the rod? (Express the speed in mm/s with two decimal places)