Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

Two long parallel conductors separated by a certain distance 'd' and carrying steady currents $I_1$ and $I_2$ are shown in figures. Choose the correct statement.

Options:

In figure 1 conductors repel each other and In figure 2 they attract each other

In figure 1 conductors attract each other and In figure 2 they repel each other

In both the figures conductors attract each other

In both the figures conductors repel each other

Correct Answer:

In figure 1 conductors attract each other and In figure 2 they repel each other

Explanation:

If the currents are flowing in the same direction, the magnetic field set up in one produces an attractive force on the other.

If the currents are flowing in the opposite direction, the magnetic field set up in one produces an repulsive force on the other.