Grade 12Mechanics
please answer this question.............
please answer this question.............
1 Answer
Abhishek Kumar
torque = 
x B
= IA = 4 X 10-3 x 6.2 = 4.84 x 10-2 Am2
So, torque =B (angle between them is 90)
For maximum torque,
Area should be maximum, as B is given constant.
For a fixed length (perimeter), Area is maximum in case of Circle. (You can find it by using derivative concept)
So, 2
R = 2 x (5 + 8)= 26
Find R.
Calculate the area =R2
Find,R2B
x B = IA = 4 X 10-3 x 6.2 = 4.84 x 10-2 Am2So, torque =
B (angle between them is 90)For maximum torque,
Area should be maximum, as B is given constant.
For a fixed length (perimeter), Area is maximum in case of Circle. (You can find it by using derivative concept)
So, 2
R = 2 x (5 + 8)= 26Find R.
Calculate the area =
R2Find,
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