Magnetic Flux Video Lessons

Concept

# Problem: Suppose a 50-turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page, The coil originally has an area of 0.250 m2. It is stretched to have no area in 0.100 s. What is the direction and magnitude of the induced emf if the uniform magnetic field has a strength of 1.50 T?

###### FREE Expert Solution

Induced emf, ε:

$\overline{){\mathbf{\epsilon }}{\mathbf{=}}{\mathbf{N}}\frac{\mathbf{∆}{\mathbf{\varphi }}_{\mathbf{B}}}{\mathbf{∆}\mathbf{t}}}$

Magnetic flux:

$\overline{){{\mathbf{\varphi }}}_{{\mathbf{B}}}{\mathbf{=}}{\mathbf{∆}}{\mathbf{B}}{\mathbf{A}}}$

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###### Problem Details

Suppose a 50-turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page, The coil originally has an area of 0.250 m2. It is stretched to have no area in 0.100 s. What is the direction and magnitude of the induced emf if the uniform magnetic field has a strength of 1.50 T?