Electrostatic shielding is the phenomenon of ……… a certain region of space from ……….. .

Explain electrostatic shielding (Screening).

Space regions

What is electrostatic shielding? What is its importance?

If an electron is not deflected in passing through a certain region of space can we be sure that there is no magnetic field in that region?

In an electron is not deflected when passing through a certain region of space, can we be sure that there is no magnetic filed in that region?