The cross-sectional area of a closely wound search coil having90 turns is 2.20 c

Question

The cross-sectional area of a closely wound search coil having90 turns is 2.20 cm2, and its resistance is 6.80.The coil is connected through leads of negligible resistance to acharge-measuring instrument having an internal resistance of12.0. A) Find the quantity of charge displaced whenthe coil is pulled quickly out of a region where B =2.05 T to a point where the magnetic field is zero. Theplane of the coil, when in the field, makes an angleof 90o with the magnetic field. The cross-sectional area of a closely wound search coil having90 turns is 2.20 cm2, and its resistance is 6.80.The coil is connected through leads of negligible resistance to acharge-measuring instrument having an internal resistance of12.0. A) Find the quantity of charge displaced whenthe coil is pulled quickly out of a region where B =2.05 T to a point where the magnetic field is zero. Theplane of the coil, when in the field, makes an angleof 90o with the magnetic field. Find the quantity of charge displaced whenthe coil is pulled quickly out of a region where B =2.05 T to a point where the magnetic field is zero. Theplane of the coil, when in the field, makes an angleof 90o with the magnetic field.

Explanation / Answer

I used the equation Q=NBA/R where Q=is charge in coulombs (C) B=Magnetic field in Tesla (T) A= is area in m^2 R=R1+R2=total resistance in ohms N=number of turns keep in mind that your A= 2.2*10^-4 m^2(just a hint)

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