Suppose a uniform magnetic field is perpendicular to the 8 11-in. page of your h

Question

Suppose a uniform magnetic field is perpendicular to the

8

11-in.

page of your homework and a rectangular metal loop lies on the page. The loop's sides line up with the edges of the page. The magnetic field is changing with time as described by

B = 2.51 103t,

where B is in teslas and t is in seconds.

(a) Is the magnetic field increasing or decreasing?

increasingdecreasing    

(b) Find the magnitude of the emf induced in the loop.
V

1 2 Suppose a uniform magnetic field is perpendicular to the 8 1/2 times 11- in. page of your homework and a rectangular metal loop lies on the page. The loop's sides line up with the edges of the page. The magnetic field is changing with time as described by 8 = 2.51 times 10^-3 t, where B is in and t is in seconds. (a) Is the magnetic field increasing or decreasing? Increasing decreasing (b) Find the magnitude of the emf induced in the loop. V

Explanation / Answer

(a)
The magnetic field is increasing.

Because magnetic field is positive.

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