What is the net force on wire number 3 shown in the figure? Find the magnitude o

Question

What is the net force on wire number 3 shown in the figure? Find the magnitude of magnetic field at point P. Point ? is the center of all three loops. A wire loop with an area of 0.020 m2 is perpendicular to a uniform magnetic field of 0.30 T. If the field drops to zero in 45 ms, what is the average induced emf in the loop? A 20-cm-diameter loop is perpendicular to a uniform magnetic field, which is increasing at rate of 0.5 ?/s. The loop resistance is 0.10 Ohm . Find the induced current in the loop.

Explanation / Answer

7)given that area A=0.020 m2   change in magnetic field is dB=0.30T time taken dt=45 x 10-3 s if e is the induced emf then e=AdB/dt    =(0.020 m2)(0.30/45 x 10-3 )    =0.133V As per Cramster there should be only one Questtion per post . please post other questions seperately other wise your post will be kept under abuse As per Cramster there should be only one Questtion per post . please post other questions seperately other wise your post will be kept under abuse

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