Question

In: Physics

A prototype for a new commercial airline is on a test flight flying above Phoniex. Its...

A prototype for a new commercial airline is on a test flight flying above Phoniex. Its entire outer body including its wings are constructed from a lightweight, non-conducting fiberglass composite. The airline company touts that due to the new composite material used in construction, there won't be an induced EMF between the ends of the wings or from nose to tail of this airline even as it flies through regions where there is a downwards (towards the ground) component of magnetic field.

a. Do you agree with the statement that there is no induced EMF between the ends of the wings? And, do you agree with the reasoning based on the composite material for the absence of an induced EMF?

b. Do you agree with the statement that there is no induced EMF from to tail? And do you agree with the reasoning based in the composite material for the absence of an induced EMF?

c. If you think there should be still an induced EMF between the ends of the wings, or from nose to tail. what parameters would you need to calculate this EMF?

Solutions

Expert Solution

A)

Emf is induced if the moving object has free electron in it and there is presence of magnetic field perpendicular to velocity

And emf will be across the length which is perpendicular to both velocity and magnetic field

If material is no-conducting material then there will be no free electron and thus no emf will be induced

So I will agree with the first statement and reasoning based on composition material

B)

As above said, emf will be induced in moving conductor across the length perpendicular to velocity and magnetic field

Emf will never induce from head to tail because velocity is always in the direction of tail to head

So I agree that there is no emf induced from head to tail but I do not agree with reason because emf will never induce from head to tail even if body is made of conductor

C)

Emf induced=B x v x L

Where, B is magnetic field down ward

v is the velocity of plane

And L is the length of wings

So, Values of B, v and L are required

genius_generous answered 2 years ago
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