Question 134: Magnetism and Matter

Question

Two long current carrying conductors are placed to each other at a distance of 8 cm between them. The magnitude of magnetic field produced at mid-point between the two conductors due to current flowing in them is 300 $$\mu$$T. The equal current flowing in the two conductors is :

Accepted Answer

As B
net
$$
e$$ 0 that is the wires are carrying current in opposite direction.
$${{{\mu _0}I 	imes 2} \over {2\pi (4 	imes {{10}^{ - 2}})}} = 30 	imes {10^{ - 6}}$$ T
$$ \Rightarrow I = {{30 	imes {{10}^{ - 6}}} \over {{{10}^{ - 6}}}}$$ A = 30 A in opposite direction.

Answer

30A in the same direction.

Answer

30A in the opposite direction.

Answer

60A in the opposite direction.

Answer

300A in the opposite direction.

Magnetism and Matter

Two long current carrying conductors are placed to each other at a distance of 8 cm between them. The magnitude of magnetic field produced at mid-point between the two conductors due to current flowing in them is 300 $\mu$T. The equal current flowing in the two conductors is :

Choose the correct answer: