PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
In a schematic of a simple circuit, a rectangular resistor symbol is drawn with a diagonal arrow through it. Which of the following identifies this component?
(a) a fuse that opens when the current becomes too large
(b) a photoresistor whose resistance varies with light intensity
(c) a variable resistor whose resistance can be adjusted manually
(d) a thermistor whose resistance depends on temperature and cannot be adjusted