Increasing the known voltage will cause the balance point to move towards the positive terminal, as a higher voltage requires a longer length of wire to achieve balance.

Increasing the known voltage will cause the balance point to move towards the positive terminal, as a higher voltage requires a longer length of wire to balance.

If the known voltage is increased, the balance length will also increase, as a higher voltage will require a longer length of wire to achieve balance.

The potential gradient is inversely proportional to the length of the wire; doubling the length halves the potential gradient.

The potential gradient is V/L = 1.5V/0.75m = 2 V/m.

If the wire is made of a material with higher resistivity, the potential gradient will decrease because the resistance increases, leading to a lower current for the same voltage.

Higher resistivity increases the resistance of the wire, which can decrease the potential gradient for a given voltage.

The potential difference per cm is calculated as 12V / 50 cm = 0.24 V/cm.

The potential gradient is V/L = 6V/0.3m = 20 V/m, but since the total length is 1.2m, the gradient is 5 V/m.

If the known voltage is increased, the balance point will move towards the positive terminal, as a higher voltage will require a longer length of wire to achieve balance.

If the known voltage is increased, a longer length of wire will be required to balance the unknown voltage, as the potential gradient remains constant.

The potential drop is calculated using Ohm's law: V = IR = 0.5 A * 10 ohms = 5 V.

Higher resistivity increases the resistance of the wire, which can decrease the potential gradient for a given voltage.

Higher resistivity increases the resistance of the wire, which can lead to a decrease in current and thus affect the potential gradient.

Higher resistivity increases the resistance of the wire, which can lead to a larger voltage drop along the wire, potentially affecting the accuracy of the measurements.

Increasing the length of the wire increases the accuracy of voltage measurement due to a smaller potential gradient.

The jockey is used to touch the wire and find the null point where the galvanometer shows zero deflection, indicating balance.

If the wire has a uniform cross-section, the potential gradient remains uniform along its length.

Higher resistivity increases the resistance of the wire, which decreases the current for a given voltage, thus increasing the potential gradient.

The jockey is used to find the balance point where the potential difference is equal to the reference voltage.

The effect of temperature on resistance measurements in a Wheatstone bridge depends on the material of the resistors, as different materials have different temperature coefficients.

Temperature changes can affect the resistance values of the resistors, thus affecting the balance condition.

In general, the resistance of conductors increases with temperature due to increased atomic vibrations.

Non-ideal resistors can introduce errors in the measurements due to their tolerance and temperature coefficients.

When the angle of incidence equals the angle of emergence, the angle of deviation is equal to the angle of the prism.

The minimum angle of deviation (D) for a prism is given by D = A, where A is the angle of the prism. Therefore, for a 60-degree prism, the minimum angle of deviation is 30 degrees.

Using the first law of thermodynamics, ΔU = Q - W, we have 40 J = 100 J - W, thus W = 100 J - 40 J = 60 J.

Using the first law of thermodynamics, ΔU = Q - W. Rearranging gives W = Q - ΔU. Here, W = 300 J - 100 J = 200 J.

Using the first law of thermodynamics, ΔU = Q - W = 300 J - 100 J = 200 J.

Using the first law of thermodynamics, ΔU = Q - W = 300 J - 100 J = 200 J.