Physics, 17.11.2020 07:20 tifftiff22
Students want to build a simple motor to demonstrate the relationship between magnetism and electricity. Each student group has a wooden block, paper clips, a battery, and some copper wire. What additional material is necessary to build a simple motor?
A.
An iron nail is necessary to produce a temporary magnetic field.
B.
A magnet is necessary to produce a permanent magnetic field.
C.
An iron nail is necessary to act as the electrical circuit load.
D.
A magnet is necessary to act as the electrical circuit load.
Answers: 1
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