Verified Solution • 2025–26 Session moderate

QAIPMT-2009-Ph-2187: NEET 2009 Physics - Class 12 AIPMT-2009-Ph-2187 Solution: Four identical thin rods each of mass M and length l form a…

Four identical thin rods each of mass M and length l form a square frame. Moment of inertia of this frame about an axis through the centre of the square and perpendicular to its plane is 23Ml2\frac{2}{3}Ml^2 133Ml2\frac{13}{3}Ml^2 13Ml2\frac{1}{3}Ml^2 43Ml2\frac{4}{3}Ml^2

Multiple Choice Options

  • A putting in series a resistance of 15 Ω\Omega �
  • B putting in series a resistance of 240 Ω\Omega �
  • C putting in parallel a resistance of 15 Ω\Omega �
  • D putting in parallel a resistance of 240 Ω\Omega �

Step-by-Step Verified Solution

G = 60 � , I g = 1.0A, I = 5A. Let S be the shunt resistance connected in parallel to galvanometer I g G = (I � I g ) S, S = I g G I _ I g = 1 5 _ 1 _ 60 = 1.0 _ 60 4 = 15 � Thus by putting 15 � in parallel, the galvanometer can be converted into an ammeter.

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