Concept:A standard resistor is made of an alloy whose resistance stays almost constant when temperature changes.Explanation:The resistor R, lamp L, and source E are connected in series.So the same current I flows through both the resistor and the lamp.This current is given by:I=R+RLEWhen the temperature of the standard resistor R increases, its resistance remains effectively constant.Hence, the current in the circuit does not change.Since the brightness of the lamp depends on the current through it, the brightness stays the same.Answer:remains the same
