# demo10 - Demonstration for Class 10 Maxwell's...

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Demonstration for Class 10 --- Maxwell's Equations --or-- How Electric Fields arise from changing Magnetic Flux How Magnetic Fields arise from changing Electric Flux We've expounded on the fact that an Emf is generated by changing magnetic flux. If you change the magnetic field through a loop, or you change the area of a loop, or you rotate the loop in a magnetic field, you get an Emf. But how do you explain that these changes cause electrons or charge carriers to move and create current? Remember that question from the activity where you were asked how an Emf can be generated if a loop is moved back and forth along the axis of a solenoid? The answer was that outside the solenoid, the magnetic field is diverging, so it has a radial component with respect to the loop. If the loop moves along the solenoid axis, then by B v F × = q the Lorenz force is tangent to the loop, and that force pushes the charge carriers around the loop. But what about when the loop is still

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demo10 - Demonstration for Class 10 Maxwell's...

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