Question
Asked Nov 8, 2019
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29.14     A flat rectangular coil of dimensions l and w is pulled with uniform speed v through a uniform magnetic field B with the plane of its area perpendicular to the field (Fig. E29.14).

(a) Find the emf induced in this coil.

(b) If the speed and magnetic field are both tripled, what is the induced emf?

Figure E29.14
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Figure E29.14

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Expert Answer

Step 1

a)

Formula to calculate the magnetic flux is, where B and A are perpendicular to each other

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— ВА cos (90 В Ф. 0

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Step 2

Formula to calculate the induced emf is,

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dФ, В ind dt subtitute 0 for Dto find d Find0 ind (0)p \Fnd

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Step 3

Thus the coil placed in the uniform magnetic field which produced a constant magnetic flux. Hence the emf...

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Science

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Electric Charges and Fields

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