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I'd really appreciate some help with the following questions.

Q1) What is the direct of the induced current in the circular loop due to the current shown in each part of the following fig?

Have attached pics of 2 questions. The one on top has I increasing and one on the bottom has I decreasing.

HOw do I go about getting it?

For the first one, I get the external magnetic field to be going downward ( intot he paper ) but then how do I find the induced magnetic field since the decreasing current does not tell me anything about the flux?

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q2) A 10.2 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnet field of .63T pointing up. During the course of .15s, the field is changed to one of .25T pointing down. What is the average induced EMF in the coil?

I did the followng:-( [(.63)(3.14)(.102/2)^2] - [(.25)(3.14)(.102/2)^2]) / (.15) and got .021V. Is this correct?

Thanks

Q1) What is the direct of the induced current in the circular loop due to the current shown in each part of the following fig?

Have attached pics of 2 questions. The one on top has I increasing and one on the bottom has I decreasing.

HOw do I go about getting it?

For the first one, I get the external magnetic field to be going downward ( intot he paper ) but then how do I find the induced magnetic field since the decreasing current does not tell me anything about the flux?

______________________________________________________________________________________________________

q2) A 10.2 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnet field of .63T pointing up. During the course of .15s, the field is changed to one of .25T pointing down. What is the average induced EMF in the coil?

I did the followng:-( [(.63)(3.14)(.102/2)^2] - [(.25)(3.14)(.102/2)^2]) / (.15) and got .021V. Is this correct?

Thanks

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