A body has $-\, 80$ $micro\, coulomb$ of charge. Number of additional electrons in it will be
$8 \times {10^{ - 5}}$
$80 \times {10^{ - 17}}$
$5 \times {10^{14}}$
$1.28 \times {10^{ - 17}}$
Sure check for presence of electric charge is
What is called quantization of electric charge ? Write $SI$ unit of electric charge.
What are called conductors and non-conductors ? In which free electrons are more ? Conductor or non-conductor.
What is earthing or grounding in household electrical circuit ?
The minimum charge on an object is