The plane of a wire loop with an area of 0.20 m 2 is perpendicular to a magnetic field of 50 mT. In 40 ms you rotate the loop 90 0 so that its plane is parallel to the magnetic field. What is the average emf induced in the loop

The average emf induced in the loop is 0.25 V

Explanation:

Given;

area of loop, A = 0.20 m²

strength of magnetic field, B =  50 mT

time, t = 40 ms

where;

Φ is magnetic flux, this is maximum when the plane of the loop is parallel to the magnetic field.

Φ = BA

induced emf = BA / t

induced emf = (50 mT x 0.20 m² ) / (40 ms)

induced emf = 0.25 V

Therefore, the average emf induced in the loop is 0.25 V

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sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

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