Effects of medium on coulomb force , Electrostatic class 12th

The coulomb electrostatic force is defined for

Evolution part 1|class 12

Evolution part2 |class 12

Which of the following properties of magnetic line of force differs them from electrostatic lines of force ?

Classify the following amongst contact and non contact forces : electrostatic force

Two charged particles placed at a separation of 20 cm exert 20 N of coulomb force on each other. What will be the force if the separation is increased to 25 cm?

Physics | 12th | Electrostatic 1 | Rajesh Suthar Sir

Physics | 12th | Electrostatic 2 | Rajesh Suthar Sir

Identify the non-contact forces: Gravitational force, Tension force, Friction force, Magnetic force, Air resistance force, Electrostatic force.