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A very long, straight solenoid with a cross-sectional area of 5.85 cm^2 is wound with 32...

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Physics

A very long, straight solenoid with a cross-sectional area of5.85 cm^2 is wound with 32 turns of wire per centimeter, and thewindings carry a current of 0.245 A . A secondary winding of 2turns encircles the solenoid at its center. When the primarycircuit is opened, the magnetic field of the solenoid becomes zeroin 4.75×10^−2 s .

What is the average induced emf in the secondary coil?

Answer & Explanation Solved by verified expert
4.1 Ratings (521 Votes)
SolutionCross sectional area A 585 cm2 585 x 104 m2No of turns Np 32 cm 3200 mCurrent thru the windings 0245 ANUmber of turns of Secondary    See Answer
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