The mutual electric force between two charges is given by Coulomb’s law. How to…
Read more
FORCES BETWEEN MULTIPLE CHARGES
COULOMB’S LAW
Coulomb’s law is a quantitative statement about the force between two point cha…
Read more
COULOMB’S LAW
BASIC PROPERTIES OF ELECTRIC CHARGE
We have seen that there are two types of charges, namely positive and negative …
Read more
BASIC PROPERTIES OF ELECTRIC CHARGE
CHARGING BY INDUCTION
When we touch a pith ball with an electrified plastic rod, some of the negative…
Read more
CHARGING BY INDUCTION
CONDUCTORS AND INSULATORS
A metal rod held in hand and rubbed with wool will not show any sign of being c…
Read more
CONDUCTORS AND INSULATORS
ELECTRIC CHARGE
Historically the credit of discovery of the fact that amber rubbed with wool or…
Read more
ELECTRIC CHARGE
Explain why (a) To keep a piece of paper horizontal, you should blow over, not under, it
Explain why (a) To keep a piece of paper horizontal, you should blow over, not…
Read more
Explain why (a) To keep a piece of paper horizontal, you should blow over, not under, it
Fill in the blanks using the word(s) from the list appended with each statement: (a) Surface tension
Fill in the blanks using the word(s) from the list appended with each statement…
Read more
Fill in the blanks using the word(s) from the list appended with each statement: (a) Surface tension
Explain why (a) The angle of contact of mercury with glass is obtuse, while that of
Explain why (a) The angle of contact of mercury with glass is obtuse, while th…
Read more
Explain why (a) The angle of contact of mercury with glass is obtuse, while that of
Explain why (a) The blood pressure in humans is greater at the feet than at the brain
Explain why (a) The blood pressure in humans is greater at the feet than at the…
Read more
Explain why (a) The blood pressure in humans is greater at the feet than at the brain
Capillary Rise
One consequence of the pressure difference across a curved liquid-air interface…
Read more
Capillary Rise