Question

*(b) Explain, with the aid of a circuit diagram, the method a student could
use to investigate how the resistance of a single lamp changes with the
potential difference across the lamp.​

Answer 1

Answer:

For different values of the resistance of the variable resistor, the current flowing through the lamp should be measured with the ammeter and the voltage across the lamp should be measured with the voltmeter. The resistance of the lamp can be calculated using the equation R = V / I.

Answer 2

Answer:

Explain, with the aid of a circuit diagram, the method a student could use to investigate how the resistance of a single lamp changes with the potential ...