Pull a rectangular loop through a magnetic field In the figure a rectangular loo

Question

Pull a rectangular loop through a magnetic field
In the figure a rectangular loop of wire L = 15 cm long by h = 6 cm high, with a resistance of R = 0.1 ohms, moves with constant speed v = 6 m/s as shown. The moving loop is partially inside a rectangular region where there is a uniform magnetic field (gray area) and partially in a region where the magnetic field is negligibly small.

In the gray region, the magnetic field points into the page, and its magnitude is B = 1.6 tesla.

(a) Which of the following diagrams correctly shows the charge distribution on the moving loop?
---Select--- A B C D E F G

(e) What is the magnitude of the magnetic force on the loop?
N

Explanation / Answer

part a )

B option

according to lenz law it oppose the change

part b )

counterclock wise (using right hand rule )

index finger into filed direction thumb in motion direction , middle finger will tell current direction

part c )

e = vBL

L = 6 cm = 6 x 10^-2 m

e = 0.576 V

I = e/R = 5.76 A

part e )

F = BIL

F = 0.553 N

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