Circuit analysis requires diagram and graph for operating point

Steps:

• Identify series circuit configuration from diagram (assumed, but not provided).
• Use battery e.m.f. of 12 V to set total voltage.
• Plot load line: V_thermistor = 12 - I × R_fixed, where R_fixed from diagram.
• Find intersection with I-V graph to get operating current I (same in fixed resistor).

Not enough information: Diagram (R_fixed value, configuration) and graph (I-V data) missing, so cannot calculate current.

Final answer: Not enough information.