Question

 (a)How do you shield a given region from any external electrostatic field? Explain briefly.

(b) Determine a unit vector perpendicular to the plane of the two forces 𝐴⃗= 𝚤̂+2 𝚥̂+ 3𝑘^

and B-> =5𝚤̂+10𝚥̂+ 2𝑘^

Answer 1

a) Electrostatic shielding is defined as a phenomenon that is seen when a Faraday cage is used to block the effects of an electric field. The effects of external fields on the internal contents are blocked using the cage.

b)

$$\vec{A}\times\vec{B}=(1,2,3)\times(5,10,2)=(-26,13,0)\\\vec{e}=\frac{1}{\sqrt{5}}(-2,1,0)$$