QUESTION 5(a) If dris an infinitesimal displacement vector given as dr = idx + jdy + kdz,write down an expression for the gradient of the scalar field Ø. Hence show thatVø. dr = dø.Interpret your result.EV( 8) QUESTION 4a) Two identical conducting spheres have charges of 1C and -1C respectively.These two charges are separated by distance of 4cm.i. Find the magnitude of the force between themii. If they are brought into contact and then again separated by 4m, findthe force between them.

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QUESTION 5 (a) If dris an infinitesimal displacement vector given as dr = idx + jdy + kdz, write down an expression for the gradient of the scalar field Ø. Hence show that VØ. dr = dØ. Interpret your result. EV( 8)

QUESTION 5 (a) If dris an infinitesimal displacement vector given as dr = idx + jdy + kdz, write down an expression for the gradient of the scalar field Ø. Hence show that VØ. dr = dØ. Interpret your result. EV( 8)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

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