Acoil of insulated wire is wound many times around an iron bar. the wire is connected to a battery and a contact switch. the contact switch is alternately flipped closed and left closed, so the wire carries a current through it, and then flipped open and left open, so that the current stops. describe what magnetic fields are created, if those magnetic fields in turn induce an emf, and whether the induced emf is in the direction of the original current or opposite
to it. justify your answer using lenz's law and the conditions which can cause a magnetic field to induce an emf. you may draw a diagram if it you to visualize the apparatus.
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Physics, 21.06.2019 21:00
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Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.
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According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f
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Physics, 22.06.2019 16:20
Select the correct answer. what does the process of natural selection involve?
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Acoil of insulated wire is wound many times around an iron bar. the wire is connected to a battery a...
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