How is an electromagnet different from a bar magnet?
question options:
a....
Physics, 22.01.2020 03:31 jodiisbored2621
How is an electromagnet different from a bar magnet?
question options:
a. only a bar magnet has a magnetic field.
b. only an electromagnet attracts materials made of iron.
c. an electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.
d. a bar magnet is a temporary and is only magnetic when a current flows through a wire wrapped around the core.
Answers: 2
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(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
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Physics, 22.06.2019 11:00
If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c
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Physics, 22.06.2019 15:40
How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9
Answers: 1
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