Electronic Principles
What form of energy is used to maintain an imbalance of charges between the terminals of a battery?

Chemical energy
None of these
Solar energy
Electronical energy
Mechanical energy

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Electronic Principles
The total impedance of a parallel RLC circuit:

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

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