Answer:
I think it's the most important part in this
The Earth is a sphere is a statement to describe a scientific law
Explanation:
Acceleration is the change in speed over a given time period
Answer:
1 and 3
Explanation:
<u>1 and 3 </u>
Increasing coils increases strength
COOLING the wire would increase current flow and strength of magnet
Adding an iron core will definitely increase the strength of the electromagnet