Question

In: Physics

The circle above is a wire loop of radius 0.85 m. It has a resistance of...

The circle above is a wire loop of radius 0.85 m. It has a resistance of 35 Ω.

1) If there is a constant magnetic field of 7.5 T into pointed into the page:

a) What is the magnitude of the induced EMF in the loop? What is its direction?

(clockwise or counterclockwise)

b) What is the magnitude of the current in the loop? What is its direction?

(clockwise or counterclockwise)

2)Assume that the magnetic field is initially 7.5 T pointed into the page, and then changes to 7.5 T pointed out of the page at a constant rate during a period of 3.5 sec

a) What is the magnitude of the induced EMF in the loop? What is its direction?

(clockwise or counterclockwise)

b) What is the magnitude of the current in the loop? What is its direction?

(clockwise or counterclockwise)

3) Now assume that the field going through the loop is B = 2.5 - .15t^2, where the field strength is in Tesla and the time t is in sec. The direction of the field is into the paper when B is positive and out of the paper when B is negative.

a What is the magnitude of the induced EMF in the loop when t=5.0 sec? What

is its direction? (clockwise or counterclockwise)

b) What is the magnitude of the current in the loop? What is its direction?

(clockwise or counterclockwise)

Solutions

Expert Solution

genius_generous answered 3 years ago
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