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Physics, 14.12.2021 15:20 ptrlvn01

Why is a motor with a rectangular coil more efficient than that with a circular coil in electromagnetic series. Use the formular of Faraday's law of electromagnetic induction.
N is number of turns of the coil
E is Electromotive Force [E. M.F]


{ \mathfrak{formular \:  \dashrightarrow \: { \boxed{ \rm{E \:  \alpha \:  - N \frac{d \phi}{dt} }}}}}
{ \rm{ \phi \: is \: magnetic \: flux}}

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