Electronic Principles
One henry of inductance is defined as:

the amount of inductance required to change the frequency of a current by 1 Hz
the amount of counter emf required to reduce a current to 1 A
the number of turns of wire in an inductor multiplied by the amount of current flowing through it
None of these
the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second

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Electronic Principles
The total inductance of a series inductor circuit is:

None of these
equal to the source voltage divided by total current
equal to the sum of the individual inductive-reactance values
equal to the sum of the individual inductance values
less than the value of the smallest inductor

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Electronic Principles
What is the difference between a conductor and an insulator?

The difference between conductors and insulators depends on how they are used
An insulator has an excessive number of free electrons, while a conductor has a few free electrons or none at all
An insulator allows current to flow much easier than a conductor does
A conductor allows current to flow much easier than an insulator does
None of these

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Electronic Principles
What is a free electron?

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

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