Physics
The properties for which nichrome wire is used in heating appliances is/are :
- Specific resistance is high
- Resistance decreases with an increase in temperature
- Resistance increases with an increase in temperature
- Both (1) and (3)
Current Electricity
10 Likes
Answer
Both (1) and (3)
Reason — Nichrome wire is commonly used in heating appliances due to its following properties:
- Specific resistance is high — Nichrome wire has a relatively high specific resistance, which means it resists the flow of electric current efficiently, resulting in heating when current passes through it.
- Resistance increases with an increase in temperature — This property is desirable for heating elements because it helps maintain a consistent level of heating even as the temperature rises.
Answered By
6 Likes
Related Questions
For which of the following substances, resistance decreases with increase in temperature?
- copper
- mercury
- carbon
- platinum
Standard resistors are made of :
- Copper
- Aluminium
- Constantan
- Carbon
A super conductor is a substance of :
- infinite conductance
- infinite resistance
- zero resistance
- both (1) and (3)
Write an expression connecting the resistance of a wire and specific resistance of it's material. State the meaning of symbols used.