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प्रश्न
A non-conducting charged ring of charge q, mass m and radius r is rotated with constant angular speed ω. Find the ratio of its magnetic moment with angular momentum is
विकल्प
`"q"/"m"`
`"2q"/"m"`
`"q"/"2m"`
`"q"/"4m"`
उत्तर
`"q"/"2m"`
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