Wikipedia:Requests for page protection/Edit
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Electric current[edit]
Change "An electric current is a flow of charged particles,[1][2][3] such as electrons or ions, moving through an electrical conductor or space." to "An electric current is the flow of a charge around an electrical conductor or through space." Reason: The DRIFT section lower down has it right. Up here, it's very wrong. Wiki should not promote wrongness or contradict itself. Please see here: "Drift speed The mobile charged particles within a conductor move constantly in random directions, like the particles of a gas. (More accurately, a Fermi gas.) To create a net flow of charge, the particles must also move together with an average drift rate. Electrons are the charge carriers in most metals and they follow an erratic path, bouncing from atom to atom, but generally drifting in the opposite direction of the electric field. The speed they drift at can be calculated from the equation: v = I n A Q {\displaystyle v={\frac {I}{nAQ}}} where v {\displaystyle v} is the drift velocity I {\displaystyle I} is the electric current n {\displaystyle n} is number of charged particles per unit volume (or charge carrier density) A {\displaystyle A} is the cross-sectional area of the conductor Q {\displaystyle Q} is the charge on each particle. Typically, electric charges in solids flow slowly. For example, in a copper wire of cross-section 0.5 mm2, carrying a current of 5 A, the drift velocity of the electrons is on the order of a millimetre per second. To take a different example, in the near-vacuum inside a cathode-ray tube, the electrons travel in near-straight lines at about a tenth of the speed of light. Any accelerating electric charge, and therefore any changing electric current, gives rise to an electromagnetic wave that propagates at very high speed outside the surface of the conductor. This speed is usually a significant fraction of the speed of light, as can be deduced from Maxwell's equations, and is therefore many times faster than the drift velocity of the electrons. For example, in AC power lines, the waves of electromagnetic energy propagate through the space between the wires, moving from a source to a distant load, even though the electrons in the wires only move back and forth over a tiny distance. The ratio of the speed of the electromagnetic wave to the speed of light in free space is called the velocity factor, and depends on the electromagnetic properties of the conductor and the insulating materials surrounding it, and on their shape and size." 2003:E3:EF1C:62AA:25FC:EBCA:B8B7:B6EE (talk) 08:33, 30 May 2024 (UTC)
Not done – You have, correctly, made an edit request at Talk:Electric current#contradictory, sadly - entry paragraph is at odds with an excellent section further down to which I have added an {{edit semi-protected}} template to attract some attention. Favonian (talk) 15:23, 30 May 2024 (UTC)
Israel-Hamas War[edit]
I would like to request that... (the map be updated to show that Israel now controls the entire Gaza-Egypt border) . LordOfWalruses (talk) 15:25, 30 May 2024 (UTC)