Electronic Principles
Reducing the amount of current through an inductor:

multiplies the value of inductance by four
has no effect on the inductance
None of these
reduces the value of inductance by one-half
multiplies the value of inductance by two

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

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