Verified Solution • 2025–26 Session moderate

QAIPMT-2010-Ph-2076: NEET 2010 Physics - Class 11 AIPMT-2010-Ph-2076 Solution: Charge q is uniformly spread on a thin ring of radius R. The…

Charge q is uniformly spread on a thin ring of radius R. The ring rotates about its axis with a uniform frequency f Hz. The magnitude of magnetic induction at the center of the ring is μ0qf2πR\frac{\mu_0 qf}{2\pi R} μ0qf2R\frac{\mu_0 qf}{2R} μ0q2fR\frac{\mu_0 q}{2fR} μ0q2πfR\frac{\mu_0 q}{2\pi fR}

Multiple Choice Options

  • A 3V4{{3V} \over 4} 4 3 V _
  • B 6 VV V
  • C 12 VV V
  • D 3V2{{3V} \over 2} 2 3 V _

Step-by-Step Verified Solution

Orbital velocity of a satellite in a circular orbit of radius a is given by v = G M a _ v _ 1 a _ v 2 v 1 = a 1 a 2 _ v 2 = v 1 4 R R = 2v 1 = 6V

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