Answer:
An electromagnet is a soft metal core made into a magnet by the passage of electric current through a coil surrounding (wrapped around) it.
Answer:
so you have a question
Explanation:
either way, have a nice day
Answer:
false
Explanation:
A vector quantity is the magnitude of a given quantity? True Or False
Answer:
E(final)/E(initial)=2
Explanation:
Applying the law of gauss to two parallel plates with charge density equal σ:

So, if the charge is doubled the Electric field is doubled too
E(final)/E(initial)=2