i need help with the steps please (6) For the picture to the right, the length L

Question

i need help with the steps please

(6) For the picture to the right, the length L 20 cm, the magnetic field = 0.57 T, and the velocity v = 15 m/s. a) (3) Find the magnitude of the induced emf bO (3) As the bar moves, the magnetic flux out of the page (circle one) increase decreases. This change in flux is opposed by a "new" field that points (circle one) into the page /out of the page. This induced field is caused by an induced current that runs (circle one) clockwise) counter- clockwise. o o o o

Explanation / Answer

We can find the magnitude of induced EMF just by using the formula.

EMF = B*L*v

Where B will be in tesla, L will be in meter and v in m/s2 .

= 20/100*15*.57

= 1.71 volt.

Now as the bar moves outside, the flux associated with loop will increase thus giving rise to the induced emf.

So there is increase in emf. So to compensate this increase the induced emf will be into the page.

And if we move our right hand side fingers in counter closewise direction then the direction of thumb will be outside the page. So the direction of current will be counter clockwise.

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