Electronic Principles
Which one of the following statements most accurately describes the nature of inductive reactance?

Inductive reactance is an opposition to current flow in dc circuits
Inductive reactance is another term for counter emf
Inductive reactance is an opposition to current flow in ac circuits
Inductive reactance is a force that tends to overcome the effects of counter emf
None of these

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

An electron has a negative charge and a proton has no charge
An electron has a positive charge and a proton has a negative charge
None of these
An electron has a negative charge and a proton has a positive charge
An electron has a positive charge and a proton has no charge

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