Answer:
B = 4 T
Explanation:
We have,
Length of a wire is 1 m
The wire is placed at an angle of 30 degrees with uniform magnetic field. It is required to find the strength of magnetic field. The force acting on a wire in magnetic field is given by:
[tex]F=ILB\sin\theta[/tex]
[tex]B=\dfrac{F}{IL\sin\theta}\\\\B=\dfrac{3}{1\times 1.5\times \sin(30)}\\\\B=4\ T[/tex]
So, the strength of magnetic field is 4 T.
