Alice builds an electric motor by positioning an electromagnet between the poles of a permanent magnet. When the electromagnet turns, the current through it switches direction because its connections to the voltage source are reversed. The repeated switching of the electromagnet's poles causes it to spin. This particular motor is used to turn the wheels of a toy car.
Which of the following actions would increase the amount of force applied to the wheels of the toy car?
A.
replacing the magnet with a stronger magnet
B.
increasing the distance between the magnet's poles and the electromagnet
C.
decreasing the number of loops in the electromagnet's coil
D.
decreasing the electric current running through the electromagnet
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Alice builds an electric motor by positioning an electromagnet between the poles of a permanent magnet. When the electromagnet turns, the ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Calculate the power of a motor that draws a current of 2 A when connected to a 12 volt battery.
Answers (1)
Could plant roots do photosynthesis? Give reasons for your answer.
Answers (2)
You will want to evaluate what you are good at and make sure it jives with your larger goals when choosing a career. Group of answer choices True False
Answers (1)
Which of the following would cause an atom to have a positive electric charge? A. having more protons than electrons B. having more electrons than protons C. having more electrons than neutrons D. having more neutrons than protons and electrons
Answers (1)
Why does a moving object come to a stop on a frictional surface?
Answers (1)
New Questions in Physics
Which factor is most important in determining climate? A. Longitude B. Latitude C. Rainfall D. Temperature
Answers (2)
We all know that in the earth gravity is there, but why clouds doesn't fall down?
Answers (2)
An unknown mass of each of the following substances, initially at 23.0, absorbs 1910 of heat. The final temperature is recorded as indicated. Find the mass of the substance, given: Pyrex glass (55.5)
Answers (1)
Which is the relationship between algae and fungus? Options: Parasitism. Commensalism. Mutualism.
Answers (1)
A skier with a potential energy of 137,200 J waits on top of a ski jump that is 200 m high. What is the mass of the skier?
Answers (1)