Physics
Grade-9
Easy
Question
The resistance of a material is most determined by four factors – length, cross-sectional area, type of material and _____.
- Voltage
- Temperature
- Current
- Time of supply
Hint:
As the temperature rises, resistance increases.
The correct answer is: Temperature
- Resistance is the opposition faced by the flow of electric current in a circuit.
- It depends upon four factors length, cross-sectional area, type of material, and temperature.
- Resistance is directly proportional to length, and temperature and inversely proportional to cross-sectional area.
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