Juanita made an electromagnet by placing an iron bar inside a coil of wire and then running current through the wire. After awhile, she turned off the current. What happened to the bar?
A The bar continued to be magnetic forever.
B The bar's magnetism became weaker over a long time.
C The bar remained magnetic, but only at the poles.
D The bar immediately lost its magnetism.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Juanita made an electromagnet by placing an iron bar inside a coil of wire and then running current through the wire. After awhile, she ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Compare the loudness of sound waves that are in phase when they interfere with the loudness of sound waves that are out of phase when they interfere
Answers (1)
A steel cylinder has a length of 2.16 in, a radius of 0.22 in, anda mass of 41 g. what is the density of the steel in g/cm^3?
Answers (1)
2. A biologist measures the speed of a swimming amoeba. The amoeba covers a distance of 17.36 microns in 30 seconds.
Answers (1)
What are the factors that affect terminal velocity?
Answers (1)
A unit that measures power or how much electricity is being used by a device
Answers (1)
New Questions in Physics
Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?
Answers (1)
If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?
Answers (1)
Why does the liquid thermometer work?
Answers (1)
What energy do electrons have when they are farther away from the nucleus?
Answers (1)
200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.
Answers (1)