Part A A sculptor has asked you to help electroplate gold onto a brass statue. You know that the charge carriers in the ionic solution are singly ionized gold ions, and you've calculated that you must deposit 0.50 g of gold to reach the necessary thickness. How much current do you need, in mA, to plate the statue in 4,5 hours? ? I = Submit Request Answer

Part A A sculptor has asked you to help electroplate gold onto a brass statue. You know that the charge carriers in the ionic solution are singly ionized gold ions, and you've calculated that you must deposit 0.50 g of gold to reach the necessary thickness. How much current do you need, in mA, to plate the statue in 4,5 hours? ? I = Submit Request Answer

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.4OQ

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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
Activity 1- Problem Solving          Solve the following problems involving the relationship of current, charges, and time from this equation I=Q/t. Show your complete solution. The compressor on an air conditioner draws 40.0A when it starts up. If the start-up time is 0.50s, calculate the number of charges passing through a cross-sectional area of the circuit in this time?
Activity 1- Problem Solving          Solve the following problems involving the relationship of current, charges, and time from this equation I=Q/t. Show your complete solution. If a metal wire carries a current of 80.0Ma, how long does it take for 3.00 x electrons to pass a given cross-sectional area of the wire?
Part D If a defibrillator passes 20 AA of current through a person in 80 μs . During this time, how much charge moves through the patient?
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The human body can exhibit a wide range of resistancesto current depending on the path of the current, contactarea, and sweatiness of the skin. Suppose the resistance acrossthe chest from the left hand to the right hand is 1.0 x 106 Ω.(a) How much voltage is required to cause possible heartfibrillation in a man, which corresponds to 500 mA of directcurrent? (b) Why should rubber - soled shoes and rubbergloves be worn when working around electricity?
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