A silk cloth rubbed with a glass rod acquire a charge (-1.6 - 10 -19) C. Then the charge on the glass rod is
3.2 × 10 -19 C
+1.6 × 10 -19 C
- 3.2 × 10 -19 C
- 1.6 × 10 -19 C
An equal and opposite charge is transferred from one body to another, when one body is rubbed with another.
The magnitude of the charge of a single electron or a proton is 1.6×10−19C. What is the net charge of an object that has 20 electrons and 22 protons?