An iron ball and an aluminum ball of mass 100 g each are heated to the same temperature and then cooled to a temperature of 20°
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Answer:
Explanation:
Let the magnetic field be
B =
For magnetic force , the expression is
F = L ( I x B )
= 1.5 ( 24i x )
F = 36 B_y k - 36 B_z j
Given
F = 3 j + 2 k
Equating equal terms
we have
B_y = 2 / 36 , B_z = - 3 / 36
Now the direction of current is changed to y direction
so F =
Given
F = - 3 i - 2 k
Equating equal terms
we have
B_x = 2 / 36 , B_z = - 3 / 36
So B = 2/36 i + 2/36 j - 3/ 36 k
Magnitude of B
= 4.1 / 36 T