Electronic Principles
Doubling the diameter of the coil in an inductor:

None of these
multiplies the value of inductance by four
reduces the value of inductance by one-half
multiplies the value of inductance by two
reduces the value of inductance by one-fourth

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Electronic Principles
What is a free electron?

An electron that has twice the amount of charge of a normal electron
An electron that costs nothing
None of these
An electron that has no electrical charge
An electron that has been freed from its parent atom

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