A uniform conducting wire of length 12a and resistance ' R ' is wound up as a current
carrying coil in the shape of,
(i) an equilateral triangle of side ' a '.
(ii) a square of side ' a '.
The magnetic dipole moments of the coil in each case respectively are:
A uniform conducting wire of length 12a and resistance ' R ' is wound up as a current
carrying coil in the shape of,
(i) an equilateral triangle of side ' a '.
(ii) a square of side ' a '.
The magnetic dipole moments of the coil in each case respectively are:
Option 1 -
√3Ia² and 3Ia²
Option 2 -
3Ia² and Ia²
Option 3 -
3Ia² and 4Ia²
Option 4 -
4Ia² and 3Ia²
-
1 Answer
-
Correct Option - 1
Detailed Solution:M? = (√3/4 a²)I × 4 = √3I² no. of turns = 4
M? = a²I × 3 = 3Ia² no. of turns = 3
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