I am able to access also the Moodle from any of the 3 machines (host and 2 guests).įor the VPL Jail Server, I believe it is running because when I access the site, the output is also OK.įrom the Moodle, I also setup the execution server which is, where /jailserver is the one I typed in the jail server URL path. I've tested that through the ping command. The host and 2 Ubuntu machines can talk to each other. Using a Windows 10 host OS, I have setup Moodle 3.1 on virtual machine with Ubuntu 16.04 OS and VPL Jail Server on another virtual machine with Ubuntu 16.04 OS also.įor the networking part, I have configured Adapter 1 as Bridged Network and Adapter 2 as Internal Network. My objective is to try the functionalities of the VPL first before pushing it to our organization. Please allow me to post my concerns for the second time. The field in moodle is " Is this correct? Port number to listen for secure connections (https: and wssĪs a password, if no matches with the path of the request then it's Port number to listen for connections (http: and ws Serve only to one interface of your system Or net (type A, B and C) separate with espaces the system save here information of request in Set the maximum time for a request in seconds I have some problem with xmlrpc, but, if you don't mind, can you take a look to my file conf, thanks! My sincere gratitude for the tireless contributions of Francisco Esquembre, Fu-Kwun Hwang, Wolfgang Christian, Félix Jesús Garcia Clemente, Anne Cox, Andrew Duffy, Todd Timberlake and many more in the Open Source Physics community.I setted my file in this way. The purpose of the commutator is to reverses the direction of the current in the loop ABCD for every half a cycle.Ī swing back and fro motion (maybe θ = 90o increase to 270o and decrease back to 90o) is all you would get out of this motor if it weren't for the split-ring commutator - the circular metal device split into parts (shown here in teal with a gap of β2) that connects the armature to the circuit. This simulation has real 3D perspective view and is targeted for O level Physics education, has a split-ring commutator designed inside it. The Play & Pause button allows freezing the 3D view for visualizing these forces, for checking for consistency with the left hand rule. The checkbox current flow & electron flow alows different visualization since I = d(Q)/dt and Q= number of charge*e. Use the slider current I to see what happens when the flow of current is reversed. This interplay of magnetic fields and moving charged particles (the electrons in the current) results in the magnetic force (depicted by the green arrows) that makes the armature spin because of the torque. The armature experiences a force described by the left hand rule. The key to producing motion is positioning the electromagnet within the magnetic field of the permanent magnet (its field runs from its north to south poles). The armature, carrying current provided by the battery, is an electromagnet, because a current-carrying wire generates a magnetic field invisible magnetic field lines are circulating all around the wire of the armature. The motor features a external magnet (called the stator because it’s fixed in place) and an turning coil of wire called an armature ( rotor or coil, because it rotates). Two carbon brushes are made to press lightly against the commutators. The ends of the wire are connected to a split ring commutator at position X & Y. A current-carrying loop that is placed in a magnetic field experiences a turning effect.A simple direct current (DC) motor is illustrated here. An open source physics at Singapore simulation based on codes written by Fu-Kwun Hwang, Félix Jesús Garcia Clemente, Francisco Esquembre and Loo Kang WEE.Įlectric motors turn electricity into motion by exploiting electromagnetic induction.
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