Draw figures to explain your calculations Mark the external and induced B-fields

Question

Draw figures to explain your calculations Mark the external and induced B-fields clearly. Write down the relevant formulas. Express your answers in SI units. Put a box around your final answers. An N-turn square coil with side l and resistance R is pulled to the right at constant speed v in the presence of a uniform magnetic field B acting perpendicular to the coil as shown in tin- figure At t = 0, the right side of the coil has just departed the right edge of the field. At time T, the left side of live coil enters the region where B = 0. In terms of the quantities N, B, l, v and R. find symbolic expressions for the magnitude of the induced emf in the loop during the time interval from t = 0 to T, the magnitude of the induced current in the coil. the power delivered to the coil the force required to remove the coil from the field Show clearly the direction of the induced B field. Show the direction of the induced current in the loop? Show the direction of the magnetic force on the loop while it is being pulled out of the field?

Explanation / Answer

(a) induced emf =Bvl

(b) induced current=i=Bvl/R

(c)power=i^2*R=(Bvl)^2/R

(d)force=ilB=(Bl)^2*v/R

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