Question

Some electric stoves have a flat ceramic surface with heating elements hidden beneath. A pot placed over a heating element will be heated, while it is safe to touch the surface only a few centimeters away. Why is ceramic, with a conductivity less than that of a metal but greater than that of a good insulator, an ideal choice for the stove top?

Solution

Verified
Step 1
1 of 2

Ceramic is a good choice because it releases the heat slowly, retaining it for a long time, and hence efficiently cooking the food as well as mainitaining the electricity bill under check as not much of the heat is wasted.

Recommended textbook solutions

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

4th EditionISBN: 9780133942651 (8 more)Randall D. Knight
3,508 solutions

Mathematical Methods in the Physical Sciences

3rd EditionISBN: 9780471198260 (1 more)Mary L. Boas
3,355 solutions

Fundamentals of Physics

10th EditionISBN: 9781118230718David Halliday, Jearl Walker, Robert Resnick
8,950 solutions

College Physics

1st EditionISBN: 9781938168000 (1 more)Paul Peter Urone, Roger A Hinrichs
3,169 solutions