Electronic Principles
What is a negative ion?

An atom that contains more protons than neutrons
An atom that contains more electrons than protons
An atom that contains more electrons than neutrons
None of these
An atom that contains more protons than electrons

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Electronic Principles
One henry of inductance is defined as:

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

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Electronic Principles
What is a free electron?

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

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