When ${10^{19}}$ electrons are removed from a neutral metal plate, the electric charge on it is
$-1.6 \,C$
$+ 1.6 \,C$
$10^{+19}\, C$
$10^{-19} \,C$
What is called quantization of electric charge ? Write $SI$ unit of electric charge.
How can you represent experimentally that $(i)$ there are two types of charges and $(ii)$ there is repulsion between two like charges and attraction between two unlike charges ?
Discuss the method of charging of two spheres by without contact method.
Why does matter obtain electric charge ?
Why the metal rods can’t be charged by holding them in hands ?