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The ratio of lengths of two rods A and B...

The ratio of lengths of two rods A and B of same material is `1:2` and the ratio of their radii is `2:1`, then the ratio of modulus of rigidity of A and B will be

Text Solution

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Given `(1_1)/(1_2)=1/2 and (N_1)/(N_2)=2`
Self inductance of solenoid is
`L=(mu_0N^2A)/(1)` ……….(i)
From (i) we can say
`(L_1)/(L_2)=(N_1/N_2)^2.(1_2/1_1)=(2)^2.(2)=8`
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