Why does alternating current change direction 50 to 60 times per second?

Physics

2 answers:

Artist 52 [7]3 years ago

8 0

Answer:

Explanation:

i'm not sure but i think it might be b.

pishuonlain [190]3 years ago

6 0

Answer:

A) because it is produced by a generator that changes current direction as it spins

Explanation:

Alternating current has a frequency of around 60 Hz because it is produced by a generator that changes direction as it spins. Every time the arm passes through the magnetic field in the generator, the current changes direction.

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Anna71 [15]

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3 0

2 years ago

Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject materia

Mademuasel [1]

Answer:

91.5 km

Explanation:

Hi!

If we are to ignore the variation in gravity we can use the formula for teh potential energy near the surface of a planet:

mgh

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$mg_{Io}h_{Io} =mg_{e}h_{e}$