Two circuits, Circuit A and Circuit B, are designed to obtain current-voltage characteristics for a micro-heating element, H. Both circuits are powered by a DC supply with an emf of 12.0 V and negligible internal resistance. The ammeter and voltmeter behave as ideal meters.
In Circuit A:
- R is connected as a simple series variable resistor with a maximum resistance of 55.0 Ω.
- When R is set to its maximum resistance, the resistance of the heating element H is 5.0 Ω.
In Circuit B:
- R is connected as a potential divider.
Discuss, with reference to Circuit A and Circuit B, whether either circuit can produce all the data from a calibration dataset where the lowest recorded data point is at a voltage of 0.60 V and a current of 0.12 A. Support your answer with a calculation.