cord of electric heater
Asked by | 13th Sep, 2008, 11:48: AM
Expert Answer:
The cord is generally made of copper and the heating element of nichrome. Copper is a good conductor whose resistivity is low. Nichrome on the other hand has much higher resistivity. So when the same current flows through them I2Rt which is the energy dissipated - is more in nichrome than in copper. So nichrome becomes hotter and hence glows
Answered by | 14th Sep, 2008, 12:45: PM
Related Videos
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change