toy train has an engine that weighs 150 grams. It is coupled to a car with a mass of 30 grams. The coupling between the engine and the car is a magnet with a maximum attractive force of 0.9 Newtons. What is the maximum pulling force that can be done by the engine to avoid the car separating from it? Neglect the mass and friction associated with the wheels of the toy

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Q: Which of the following is true about a magnet that is broken into two pieces? a Both are as…

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Q: What is the direction of the magnetic force on a positive charge moving into the page in a B field…

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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.