Basic Qualification · B-004 Circuit components · B-004-006-008
How does the resistance of a resistor change with rising ambient temperature?
- A It increases
- B It remains constant
- C It decreases
- D It depends on its temperature coefficient
Correct answer: D — It depends on its temperature coefficient. From the official ISED question bank, verified word for word.
Why
The answer depends on the temperature coefficient because this value describes how a specific resistor's material reacts to heat; some materials, like carbon, lower their resistance when warm, while others, like certain metals, raise it. The full explanation — and one for every question — is in Pro.
Practise this section
The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.