The earth has a circumference of about 25000 miles. How is it expressed in scientific notation?
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Answer:
<h3>The area of second coil is ≅ 0.025Explanation:
Given :
No. of turns in the first coil
No. of turns in the second coil
Area of first coil
According to the law of electromagnetic induction,
Induced emf =
Where magnetic flux.
Since given in question emf of both coil is same so we compare above equation.
Therefore, the area of second coil is ≅ 0.025