_____ is an electric current that reverses direction in a regular pattern.

Electricity and Magnetism Quiz

Quiz
•
English
•
9th Grade
•
Hard
Maie Wahba
Used 1+ times
FREE Resource
36 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
DC
AC
analog
digital
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A(n) ______ is a conducting metal ring in a motor or generator that is split.
solenoid
electromagnet
commutator
fuse
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A(n) ___ signal is formed when there is a continuous change of voltage in a circuit.
AC
digital
DC
analog
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A(n) ______ signal is an electric current used to encode information.
analog
electromagnetic
electronic
digital
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Coulomb’s law, when charge decreases, force ___, and when distance decreases, force ___.
decreases; decreases
increases; decreases
increases; increases
decreases; increases
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A(n) ______ is a thin, coiled wire that is tightly wrapped around a metallic core.
commutator
solenoid
turbine
electromagnet
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A(n) ____ is a solid crystal material that is able to conduct electricity.
electromagnet
MRI
semicrystal
semiconductor
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