Electronic Principles
What is a negative ion?

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

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Electronic Principles
The total impedance of a parallel RLC circuit:

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

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