CAIE A-Level Physics A2 C 2 Drawing and Interpreting Circuit Diagrams Topic Practice

An ideal op-amp is incorporated into the circuit of Fig. 8.1.

On Fig. 8.1, draw the symbol for a light-emitting diode (LED), connected at the output of the circuit, such that it emits light when the resistance of the thermistor is less than $R_{\mathrm{T}}$.