A body has $-\, 80$ $micro\, coulomb$ of charge. Number of additional electrons in it will be
$8 \times {10^{ - 5}}$
$80 \times {10^{ - 17}}$
$5 \times {10^{14}}$
$1.28 \times {10^{ - 17}}$
When a conducting soap bubble is negatively charged then
The minimum charge on an object is
A proton and a deuteron are initially at rest and are accelerated through the same potential difference. Which of the following is false concerning the final properties of the two particles ?
A girl brings a positively charged rod near a thin neutral stream of water from a tap. She observes that the water stream bends towards her. Instead, if she were to bring a negatively charged rod near to the stream, it will
If $10^{9}$ electrons move out of a body to another body every second. how much time is required to get a total charge of $1 \,C$ on the other body?