Recent content by erickalle

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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    Hi Dr.Transport. Thanks for joining in. If you had joined earlier, it would have saved just about 25 or so replies in this thread. So there’s no E-field in a metal and therefore the relation F=E*q in a metal is not valid anymore. This is new to me but not entirely unexpected. My edition of...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    Quote of Ashcroft / Mermin solid state physics near the top of page 7: It quite clearly means to say there’s an E field in the metal.
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    Now put a pd across a conductor. What will be the net result of forces by the field exerted on the conduction electrons and forces exerted on “on average” neutral ions?
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    According to all electrical conduction theories: Say a conduction electron under the influence of an external electrical field leaves an atom. This atom now becomes an electrically charged ion. There’s absolutely no doubt about that! There are electrically charged +ve ions for as long as the...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    It’s probably me but I don’t understand this sentence. You have stated (#28) that on average the mercury ions are neutral. That still leaves a non neutral net charge per atom because of the –ve electron. Are you saying that the electrons are on average neutral as well?
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    Hi Gokul. 1000V/m is a huge field for the conductor we are considering! What do you think is providing a counter force of 10,000 N per atom so that there’s no net acceleration? What is the total pressure exerted by this counter force? edit: 10,000 N in total. Not per atom I do this experiment...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    If the mercury ions never become charged then we are left with the charge of the –ve electrons. So the total sum is: zero charge on the ion and 1 negative electronic charge per atom. This makes for a lot of –ve charge on the whole wire. If you got objections to me melting the wire with a high...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    Electroplating is a completely different process from the normal conduction current we are discussing here. If that would be true the total mass of mercury would have an enormous net –ve charge! That statement contradicts the fact that macroscopically wires are neutral. If you would have...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    And you forget that I’m now talking about a liquid, not a solid. Why are the electrons allowed to move but the +ve ions have to stay put in a metallic liquid? Right back in my op I mentioned liquid mercury so as to get rid of all the solid bonds. This is the second time you misquoted me!
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    As I suggested before, increase your current (in a lab) more then 100x so that the wire melts. The drift velocity is then > 1 mm/s. Any +ve ion see as much –ve / +ve ions in front as behind so that there’s no net coulomb force. The force on each +ve ion due to the applied field is > 7E-20 N. The...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    At this stage you have to make a choice and tell me at which of the next sequence of events you want to stop me. 1 Energy is stored in the empty space in between the plates of a capacitor. 2 Upon discharge this energy is flowing radially outwards. 3 This energy is therefore not entering the...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    Sorry for the delay but I’m on a 12 hours shift system and to reply properly I need some time to ponder. At this stage I do not want to talk about charge. As shown I’ve got reason to doubt the theory which says that power is supplied length ways. If I can show that the power is supplied by an...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    ZapperZ thanks for still talking to me. I’m going to be busy for a couple of days but I’ll be back. By the way you better let me win this argument otherwise I’ll start a thread on airplanes and conveyor belts! regards, eric Ps. perhaps by that time there will be some more ideas of other people.
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    For your very good Duracell products the same answer applies as the one of the regulated power supply. I never said charges are moving radially. Energy is moving radially! For a diagram of the E and B fields and Poynting vector involved look at the lecture I mentioned before. I’ve not got...
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    Electrical Conduction: Exploring Drift Speed and Force Requirements

    Voltage arises from the power supply. In a way this wire is the load. In my circuit wire and load are the same thing. Ok if you are unhappy about my figures in the op let's have a look at yours. Your current density is J= I / A = 0.5 / 2 = 0.25 A/mm^2 (2.5E5 A/m^2) which is low but perfectly...
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