According to Boyle's law, for a given amount of gas at constant temperature, pressure is inversely proportional to volume. Halving the volume doubles the pressure.

The rate of heat transfer decreases with an increase in thickness, as per Fourier's Law.

The reading of a potentiometer is independent of the resistance of the wire as long as the potential difference remains constant.

As temperature increases, the resistance of the wire typically increases, which can affect the potential gradient and thus the reading.

If the wire is heated and its resistance increases, the reading of the potentiometer decreases because the potential gradient will be affected.

Increasing the resistance of the galvanometer reduces the current through it, which can lead to a decrease in the reading on the potentiometer.

For most conductors, resistance increases with an increase in temperature due to increased atomic vibrations.

Resistance R is inversely proportional to the area; halving the diameter quarters the area, thus quadrupling the resistance.

The resistivity of a superconductor approaches zero as it reaches absolute zero.

In the superconducting state, the resistivity of a superconductor becomes zero.

If the resistances are made equal, the sensitivity of the Wheatstone bridge becomes infinite, as even a small change will cause a large deflection.

An increase in intensity by a factor of 10 results in an increase of 10 dB, but the sound level increases by 20 dB.

The speed of light decreases when it passes from a less dense medium (air) to a denser medium (glass) due to the change in refractive index.

Surfactants lower the surface tension of liquids by disrupting cohesive forces between molecules.

The surface tension of water decreases as temperature increases.

Adding soap decreases the surface tension of water because soap molecules disrupt the cohesive forces between water molecules.

Adding a surfactant decreases the surface tension of water by disrupting the cohesive forces between water molecules.

Adding soap to water decreases its surface tension because soap molecules disrupt the cohesive forces between water molecules.

The surface tension of water decreases with an increase in temperature.

During adiabatic expansion, a gas does work on its surroundings, which results in a decrease in temperature.

During a phase change, the temperature of a substance remains constant while heat is added or removed.

During a phase change, the thermal energy remains constant as the energy is used to change the state rather than increase the temperature.

If one branch is disconnected, the total current decreases because there is less path for the current to flow.

In a series circuit, the total resistance increases as more resistors are added.

In a parallel circuit, adding more resistors decreases the total resistance.

Removing a resistor in parallel increases the total resistance, as there are fewer paths for current.

Removing a resistor from a series circuit decreases the total resistance since the total resistance is the sum of all resistors.

In a series circuit, the total resistance increases as more resistors are added.

When the Wheatstone bridge is balanced, the total resistance is at a minimum for the given configuration.

For gases, viscosity increases with an increase in temperature due to increased molecular activity and collisions.