Saved Bookmarks
| 1. |
plz help to understand these 1) what is the difference between Resistance and resistivity? 2)what is variable resistance and why it is required? 3)what is rheostat? |
|
Answer» plz help to understand these 1) what is the difference between Resistance and resistivity? 2)what is variable resistance and why it is required? 3)what is rheostat? |
|