Question

1.1. What is the principle of operation and construction of devices for electrostatics demonstrations,"Electrostatics animations".?

1.2. Explain in terms of physical laws and properties of the electrostatic field (lines and strength), charge and force of the Electrostatics animations. Draw the suitable schemes with marked charges, forces etc.

Answer 1

1.1 The principle of operation and construction of devices for electrostatics demonstrations is "generation of charges", the +/- charges must be generated on different surfaces to exhibit electrostatic animations, by rubbing, attaching a battery, current carrying coils etc.

1.2 Electric fields never cuts or intersect each other. The strength of electric field depends on the number of electric field lines present around the charge/s. The magnitude and field lines are directly proportional to each other.

And the electric field follow inverse square law,

Electric field through a +q single charge:

Electric force and field:

(Two positive charges)

Upvote, if the answer was helpful. Have a nice and safe day.