Physics
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Determine the magnetic flux strength through the right trapezoid illustrated in the figure below.
A circular antenna has a diameter of 10 cm and is located within a uniform electromagnetic field with a strength of 3.0 mT. The antenna detects a magnetic flux of 1.5 μWb. Determine the angle between the electromagnetic field direction and the circular antenna plane.
The axis of a circular coil is rotated from 30° to 70° in 0.050 s with respect to the earth's magnetic field. The coil's cross-section area is 16 cm2 and the number of turns in the coil is 300. Earth's magnetic field has a value of 7.0 × 10-5 T. Calculate the total magnetic flux through the coil initially and finally.