EEE :: Magnetism and Electromagnetism
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When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage
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The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is
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For a given wirewound core, an increase in current through the coil
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If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density
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When the current through the coil of an electromagnet reverses, the
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What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500
Wb/At × m? -
A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will
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What is the flux density when the flux is 5.5
Wb and the cross-sectional area is 6 × 10–3 m2? -
If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage
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