SUMMARY
When a constant voltage is applied to a resistor with a current of 1 A flowing through it, the current will decrease as the resistor heats up, provided the resistor is made of wire. This is due to the increase in resistance that occurs with temperature rise. However, for an ideal resistor that maintains constant resistance regardless of temperature, the current remains unchanged. This distinction is crucial for understanding the behavior of real versus ideal resistors in electrical circuits.
PREREQUISITES
- Understanding of Ohm's Law
- Knowledge of resistance-temperature relationship in conductors
- Familiarity with electrical components and their properties
- Basic principles of heat dissipation in resistors
NEXT STEPS
- Study the effects of temperature on resistance in materials
- Learn about ideal versus non-ideal resistors
- Explore the concept of thermal runaway in electronic components
- Investigate the role of heat sinks in managing resistor temperatures
USEFUL FOR
Electrical engineers, physics students, and anyone interested in the thermal behavior of resistors in circuits will benefit from this discussion.