Two parallel current carrying wires exerted equal but opposite forces on each other. The current in the second wire is doubled. How do their forces relate now? * A. F1=2F2 B. 2F1=-F2 C. F1=-F2 D. F1=F2   2. A charged particle q, traveling through a magnetic field, has the force F acting upon it. Another particle with charge equal to -2q will have the same force acting upon it if:  A. it moves at half the velocity in the opposite direction. B. it moves at twice the velocity in the opposite direction. C. it moves at half the velocity in the same direction. D. it moves at twice the velocity in the

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Q: Q1 = 10 C Q3 = -25C 20° 45° 15 m Q2 = 15 C

A: Q1=10c

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A: Magnetic field induction and it's uses are described below:

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A: Correct option is (B) i e  average force is 37.5 N .

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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.