Answer:

Explanation:
As we know that

E = 1.8 kV/mm
now we know that electric field between the plated of capacitor is given as

now we will have



now we have

now we have area of the plates of capacitor



Answer:
It attracts ferrous materials
Explanation:
A magnet attracts ferrous materials A ferrous materials are metallic substances or conductors that can conduct heat and electricity. Example of this ferrous materials includes iron, metal etc. Since magnets only can attracts metallic substance to itself, then we can also conclude that they attract ferrous materials since ferrous materials. possesses properties of a metal.
Magnets possesses both north and south poles.
The same of the bar magnets are known to repel each other while unlike poles attract each other.
thank you so much for the schlatt