When a magnet is cut in half, each half becomes a smaller magnet with its own north and south poles, resulting in two smaller magnets.

The magnetic field strength is directly proportional to the current, so it halves.

The magnetic field strength around a long straight conductor is inversely proportional to the distance from the conductor. Therefore, if the distance is doubled, the magnetic field strength halves.

The magnetic field strength decreases with the square of the distance from the wire.

The magnetic field strength inside a long solenoid is directly proportional to the current flowing through it; thus, it increases with an increase in current.

The magnetic field strength around a long straight conductor decreases inversely with distance, so it halves when the distance is doubled.

Lenz's law states that the direction of induced current is such that it opposes the change in magnetic flux that produced it.

Self-inductance is the property of a coil to induce an EMF in itself due to a change in current.

Self-induction is the phenomenon where a changing current in a coil induces an EMF in the same coil.

Average power (P_avg) is given by P_avg = P_max × power factor. Therefore, P_avg = 100 W × 0.8 = 80 W.

Average power (P) is given by P = V_rms * I_rms * PF. Therefore, P = 100 V * 5 A * 0.8 = 400 W.

According to Lenz's law, the induced current will flow in a direction that opposes the change, which is counterclockwise if the magnet is moved towards the coil.

According to Lenz's law, the induced current will flow in a direction that opposes the change, so it will be counterclockwise if the magnetic field decreases.

According to Lenz's law, the induced current will flow in a direction that opposes the change in magnetic flux. If the magnetic field is increasing, the induced current will flow counterclockwise.

According to the right-hand rule, if you point your thumb in the direction of the current, your fingers curl in the direction of the magnetic field lines, which is counterclockwise.

The direction of the magnetic field around a current-carrying wire is determined by the right-hand rule, which gives a clockwise or counterclockwise direction based on the current's direction.

Using the right-hand rule, if you point your thumb in the direction of the current, your fingers curl in the direction of the magnetic field, which is counterclockwise.

The direction of the magnetic field around a straight current-carrying conductor can be determined using the right-hand rule, which indicates that the field lines form concentric circles around the conductor in a counterclockwise direction when viewed from the positive end.

Using the right-hand rule, the magnetic field at the center of the loop is out of the plane.

According to the right-hand rule, the magnetic field lines around a straight conductor carrying current are circular and lie in planes perpendicular to the conductor.

Using the right-hand rule, the thumb points in the direction of current, and the fingers curl in the direction of the magnetic field.

The magnetic field produced by a current-carrying loop at its center is perpendicular to the plane of the loop, following the right-hand rule.

According to the right-hand rule, if you point your thumb in the direction of the current, your fingers curl in the direction of the magnetic field.

Using the right-hand rule, the magnetic field direction is counterclockwise around the wire.

The direction of the magnetic field produced by a current-carrying wire is perpendicular to both the wire and the direction of the current.

A charged particle moving perpendicular to a magnetic field experiences a magnetic force that acts perpendicular to both the velocity and the magnetic field, causing it to move in a circular path.

A current-carrying conductor placed in a magnetic field experiences a force due to the interaction between the magnetic field and the current.

A magnetic field exerts a force only on moving charges; therefore, a stationary charge experiences no force.

According to the Biot-Savart Law, the magnetic field strength is inversely proportional to the distance, so doubling the distance halves the magnetic field strength.

Increasing the area of the loop in a uniform magnetic field increases the magnetic flux, as magnetic flux is given by the product of the magnetic field strength and the area.