A conductor has $14.4 \times {10^{ - 19}}coulombs$ positive charge. The conductor has(Charge on electron $ = 1.6 \times {10^{ - 19}}coulombs$)
$9$ electrons in excess
$27$ electrons in short
$27$ electrons in excess
$9$ electrons in short
Why can we say that charge of any body is always an integral multiple of $'e'$ ?
What was found by Thales of Miletus ?
A polythene piece rubbed with wool is found to have a negative charge of $3 \times 10^{-7} \;C$
$(a)$ Estimate the number of electrons transferred (from which to which?)
$(b)$ Is there a transfer of mass from wool to polythene?
What is point charge ?
The minimum charge on an object is