A 96-mH solenoid inductor is wound on a form 0.80 m in lengt…
A 96-mH solenoid inductor is wound on a form 0.80 m in length and 0.10 m in diameter. A coil is tightly wound around the solenoid at its center. The coil’s resistance is 9.9 ohms. The mutual inductance of the coil and solenoid is 31 H. At a given instant, the current in the solenoid is 540 mA and is decreasing at the rate of 2.5 A/s. At the given instant, what is the magnitude of the induced current in the coil?
Read DetailsThe magnitude of the Poynting vector of a planar electromagn…
The magnitude of the Poynting vector of a planar electromagnetic wave is 0.939 W/m2. The wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. What is the maximum value of the electric field of that wave? (c = 3.0 × 108 m/s, μ0 = 4π × 10-7 T ∙ m/A, ε0 = 8.85 × 10-12 C2/N ∙ m2)
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