The magnetic field inside a solenoid is directly proportional to the current flowing through it, so increasing the current increases the magnetic field.

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.

When a magnet is cut into two pieces, each piece becomes a magnet with its own north and south poles, thus maintaining the magnetic field lines.

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 solenoid is directly proportional to the current flowing through it. Therefore, doubling the current will double the magnetic field strength.

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 inside a solenoid is directly proportional to the current flowing through it.

The magnetic field strength inside a solenoid is directly proportional to the current flowing through it. Therefore, if the current is doubled, the magnetic field strength also doubles.

The magnetic field strength inside a solenoid is directly proportional to the number of turns per unit length. Therefore, if the number of turns per unit length is increased, the magnetic field strength also increases.

The magnetic field strength inside a solenoid increases with the number of turns, as it is directly proportional to the number of turns per unit length.

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

When the current in a solenoid is reversed, the direction of the magnetic field also reverses.

Reversing the direction of current in a wire reverses the direction of the magnetic field around it.

The magnetic field around a long straight conductor decreases with distance. Specifically, it is inversely proportional to the distance from the conductor.

The moment of inertia can change when rotating about an axis that is not a principal axis due to the distribution of mass relative to the new axis.

Increasing the resistance of the wire decreases the current, which causes the null point to move away from the battery.

Increasing the intensity of light increases the number of photons incident on the surface, leading to more emitted electrons, provided the frequency is above the threshold.

Increasing the intensity of light increases the number of photons, which in turn increases the number of emitted electrons, provided the frequency is above the threshold.

As the temperature increases, the kinetic energy of gas particles increases, causing them to move faster.

When a solid is heated, its particles gain energy and vibrate more vigorously, potentially leading to a change in state.

When a solid is heated, its particles gain energy and vibrate faster, which can lead to a change in state.

Increasing the voltage increases the photoelectric current by attracting more emitted electrons.

If the incident light is below the threshold frequency, no electrons are emitted.

Cooling the metal surface reduces the thermal energy of the electrons, making it harder for them to overcome the work function.

As the frequency of a sound increases, its pitch also increases.

When light passes through a polarizer at an angle of 45 degrees, it becomes partially polarized.

When a capacitor is fully charged, the potential difference across its plates becomes maximum and remains constant until it is discharged.

If the length of the segment is halved, the potential difference across that segment also halves, assuming the potential gradient remains constant.