Science, asked by gamerking4139, 3 months ago

what do we observe when current passes through the aluminium rod from B to A​

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Answered by Anonymous
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A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. ... Some scientists think there could be as many as one hundred billion galaxies in the universe.

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