At the midpoint, the magnetic fields due to the two currents cancel each other out, resulting in zero net magnetic field.

The magnetic field due to a magnetic dipole at a point along its axial line is given by B = (μ₀/4π) * (2m/r³).

According to Ampere's law, the magnetic field inside a hollow conductor carrying current is zero.

The magnetic field inside a long solenoid is given by B = μ₀nI, where n is the number of turns per unit length.

The magnetic field inside a long solenoid is uniform and parallel to the axis of the solenoid.

The magnetic field inside a long solenoid is given by B = μ₀nI.

The magnetic field inside a long, ideal solenoid is uniform and parallel to the axis of the solenoid.

The magnetic field inside a long, ideal solenoid is uniform and parallel.

The magnetic field inside a long, straight solenoid is given by B = μ₀nI, where n is the number of turns per unit length and μ₀ is the permeability of free space.

The magnetic field inside a long, straight solenoid is uniform and parallel to the axis of the solenoid, given by B = μ₀nI, where n is the number of turns per unit length.

The magnetic field inside a long solenoid is given by B = μ₀nI.

The magnetic field at the center of a square loop is given by B = (μ₀I)/(√2a).

The right-hand rule helps determine the direction of current, magnetic field, and force on a charge in magnetic fields.

The magnetic field lines around a bar magnet form closed loops, exiting from the north pole and entering the south pole.

The unit of magnetic field strength is the Tesla (T), which is defined as one weber per square meter.

Magnetic field lines are closed loops; they do not start or end but continue infinitely.

Magnetic field lines form closed loops, meaning they exit from the north pole and enter the south pole, and they do not cross each other.

The Earth's magnetic field has a magnetic north and south pole and affects compass needles, causing them to align with the field.