Two infinitely long straight wires carrying a current I in opposite directions through the x - y plane as shown in the figure below. 1. Determine the magnitude and direction of the magnetic field at point O (0,0) 2. Determine the magnitude and direction of the magnetic field at point P (d/2,d/2) Based on Biot-Savart's law, determine the magnetic field produced at: 3. Wire Circles 4. Solenoid

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Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.