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
How much positive and negative charge is there in a cup of water $(250\;gm)$?
How can you charge a metal sphere positively without touching it?
What is called polarity of electric charge ?
What is called quantization of electric charge ? Write $SI$ unit of electric charge.
When a glass rod is rubbed with a silk cloth, charges appear on both. A similar phenomenon is observed with many other pairs of bodies. Explain how this observation is consistent with the law of conservation of charge.