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## Homework Statement

Loop like an "O" with current moving to the left

Diameter = 8cm

Current = 15A

FIND THE FLUX DENSITY OF THE CURRENT LOOP IN THE PLACE OF THE LOOP?

## Homework Equations

B(flux density)=F(magnetic flux)/A(area)

B=H(magnetic field strength)*Permeability

H(magnetic field strength)=I(current)/A(area)

A(area)=Pi*r(radius)

^{2}

L(inductance)=Ioda(magnetic flux)/I(current)

Ioda(magnetic flux)=V(velocity)xT(time)

(permeability)=L(inductance)/d(diameter)

## The Attempt at a Solution

Area =

**50.24**= (3.14 *(4

^{2}))

Magnetic Field Strangth =

**.299 or .3**= (15/50.24)

From this point I am lost because it appears to me that I am missing a key part to finish the equation. If I can find out the time or the charge then I can do some substitions and find the answer the equation. Can anyone point me in the right direction?

These are the possible answers:

1. 1.68 x 10^-5 Wb/meters squared

2. 2.36 x 10^-5 Wb/meters squared

3. 1.68 x 10^-4 Wb/meters squared

4. 2.36 x 10^-4 Wb/meters squared

5. 2.87 x 10 Wb/meters squared

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