William gilbert used a terella in an attempt to explain .
a.unlike poles of a magnet attract.
b.why compasses point toward the north and south poles of the earth.
c.the properties of lodestone.

William Gilbert used a terella in an attempt to explain : B. why compasses point toward the north and south poles of the earth
Terella was used in earlier time to simulate earth magnetosphere before it was replaced by computers

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William Gilbert used a terella in an attempt to explain .

Out of all the options shown above the one that best represents the explanation that William Gilbert was trying to make by using a terella was answer choice B) why compasses point toward the north and south poles of the earth. He used a terella in an attempt to explain his theory that the Earth is a giant magnet.

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