Give difference between charge and mass.
charge | mass |
$1$ It produces electric field. | $1$ It produces gravitational field. |
$2$ It is intrinsic property of substance. | $2$ It shows amount of substance. |
$3$ It may be positive or negative. | $3$ It is always positive. |
$4$ Its value doesn't depend on speed.extremely high speeds. |
$4$ Mass increases with increase in speed with |
$5$ Force produced by it can be attractive on repulsive. |
$5$ Force produced by it is always attractive. |
$6$ Its $SI$ unit is coulomb $(C)$. | $6$ Its $SI$ unit is kilogram $(\mathrm{kg})$ |
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 ?
Why does matter obtain electric charge ?
One metallic sphere $A$ is given positive charge whereas another identical metallic sphere $B$ of exactly same mass as of $A$ is given equal amount of negative charge. Then
What is called electrostatics ?
Write definition of unit Coulomb.