Relation between magnetic moment and angular velocity is

M \propto ω

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M \propto ω^{2}

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M \propto \sqrt{ω}

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None of these

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Solution

The correct option is A $M \propto ω$
Magnetic moment,
$M = I a = l (π r^{2}) = \frac{q}{T} \times π r^{2} (∵ q = l t)$ .
As, $ω = \frac{2 π}{T}$
$∴ M = \frac{q ω r^{2}}{2}$
$\Rightarrow M \propto ω$

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Relation between magnetic moment and angular velocity is

The correct option is A M∝ωMagnetic moment,M=Ia=l(πr2)=qT×πr2(∵q=lt).As, ω=2πT∴M=qωr22⇒M∝ω

The correct option is A $M \propto ω$
Magnetic moment,
$M = I a = l (π r^{2}) = \frac{q}{T} \times π r^{2} (∵ q = l t)$ .
As, $ω = \frac{2 π}{T}$
$∴ M = \frac{q ω r^{2}}{2}$
$\Rightarrow M \propto ω$