Question

(b) Student B repeated the investigation.

During Student B's investigation the temperature of resistor R increased.
Explain how the increased temperature of resistor R would have affected Student
B's results.

Answer 1

When the temperature of resistor R increases, it can affect Student B's results by changing the resistor's resistance and affecting the overall circuit resistance. An increase in temperature causes the resistance of a resistor to increase, which decreases the current through it according to Ohm's law, and could affect the results of an investigation involving electrical measurements or calorimetry.

Step-by-step explanation:

When the temperature of resistor R increases, it can affect Student B's results in a couple of ways:

1. The increased temperature can cause a change in the resistance of the resistor. According to Ohm's law, if the resistance increases, the current flowing through the resistor will decrease. This means that the measurements of current taken by Student B may be lower than expected.
2. The increased temperature can also affect the properties of other components in the circuit, such as the connecting wires or the power supply. This can lead to changes in the overall resistance of the circuit, which in turn can further affect the measured values of current. Therefore, the entire circuit should be taken into consideration when analyzing the effect of increased temperature on the results.