Electrons occupy different (Select)
around the nucleus of an atom. These
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are divided into
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These
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M are further divided into
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where only up to
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electron(s) may reside. These electrons occupy these (Select]
in opposite
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a. hope i'm right

explanation:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

let that person have a turn to speak : )

2b2t

explanation:

2b2t