A uniform non-conducting ring of radius 2.2 cm and total charge 6.08 µC rotates with a constant angular speed of 2.01 rad/s around an axis perpendicular to the plane of the ring that passes through its center. What is the magnitude of the magnetic moment of the rotating ring?

Respuesta :

Answer:

The magnitude of the magnetic moment of the rotating ring is [tex]2.96\times10^{-9}\ Am^2[/tex]

Explanation:

Given that,

Radius = 2.2 cm

Charge [tex]q = 6.08\times10^{-6}\ C[/tex]

Angular speed = 2.01 rad/s

We need to calculate the time period

[tex]T = \dfrac{2\pi}{\omega}[/tex]

Now, The spinning produced the current

Using formula for current

[tex] I = \dfrac{q}{T}[/tex]

We need to calculate the magnetic moment

Using formula of magnetic moment

[tex]M = I A[/tex]

Put the value of I and A into the formula

[tex]M=\dfrac{q}{T}\times A[/tex]

[tex]M=\dfrac{q\times\omega}{2\pi}\times \pi\times r^2[/tex]

Put the value into the formula

[tex]M=\dfrac{6.08\times10^{-6}\times2.01\times(2.2\times10^{-2})^2}{2}[/tex]

[tex]M=2.96\times10^{-9}\ Am^2[/tex]

Hence, The magnitude of the magnetic moment of the rotating ring is [tex]2.96\times10^{-9}\ Am^2[/tex]

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