Thrust

Class 9 Science Chapter 10 Gravitation “Thrust is force acting perpendicular to the surface.” Consider a box kept on table. Box exerts force on table. Therefore, direction of force is perpendicular. Hence, one can say that the box exerts thrust on the surface of table. Effect of thrust It can be demonstrated by very good […]

Ohm’s Law – Relation between Resistance, Potential Difference and Current

Ohm’s law determines the relation between the potential difference and the flow of current. Therefore, Ohm’s law states that, “ At constant temperature potential difference(V) is directly proportional to current (I)” V∝ I Verification of Ohm’s Law At constant temperature, if we plot a graph of current versus potential difference, a straight line graph passing […]