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INDUCTORS

Inductors
The inductance of an iron-core coil decreases if

the iron core is removed
None of these
the length of the coil decreases
the number of turns is decreased

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Inductors
The following coils are in parallel: 75 H, 40 H, 25 H, and 15 H. The total inductance is approximately

2.2 μH
6.9 μH
155 μH
14 μH

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Inductors
When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field

quadruples
does not change
is quartered
doubles

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