What is neccessary for a magnetic field to create electric current in a copper coil?
1 answer:
A, Lenz' Law. There need to be a difference of flux, so if you use AC you will get a current too.
You might be interested in
Do swimming which make Newtons Third Law
I think its B B)Warm water rises and cold water moves in to replace it.
Answer:
v1=18.46m/s
v2=29.8cm/s
Explanation:
We know that

the equation of the motion is

we can calculate w by using

Hence, we have that

the speed will be

hope this helps!
Gains at least one nutrient
Answer:
9 times as great
Explanation:
KE = 1/2mv²
- 1/2(1200)(2)² = 2,400 J
- 1/2(1200)(6)² = 21,600 J
21,600 / 2,400 = 9