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

Inductive reactance is a force that tends to overcome the effects of counter emf
None of these
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

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Electronic Principles
The total impedance of a parallel RLC circuit:

always decreases as the applied frequency increases
always increases as the applied frequency increases
is maximum at the resonant frequency
None of these
is equal to the sum of the values of resistance, inductive reactance and capacitive reactance

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Electronic Principles
Molecule is

A atom that flows whenever there is an imbalance of electrical charges between two points
A atom that has an excessive number of electrons in its outer orbit
A atom that has a shortage of electrons in its outer orbit
The smallest particle of a substance that retains the properties of that substance
None of these

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