Electronic Principles
What is a negative ion?

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

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Electronic Principles
The total impedance of a parallel RLC circuit:

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

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Electronic Principles
Which one of the following statements is true for voltage in a series circuit?

The total voltage is equal to the sum of the individual voltages in a series circuit
The total voltage in a series circuit is always less than the value of the smallest voltage
The total voltage in a series circuit is equal to the average value of the individual voltages
The total voltage of a series circuit is equal to the total current divided by the total resistance
None of these

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Electronic Principles
Which one of the following statements most accurately reflects the nature of ac power?

None of these
The current in an ac circuit flows in one direction at a steady level
The current in an ac circuit changes direction periodically
The current in an ac circuit flows in one direction, but changes value periodically
The current in an ac circuit flows in two directions at the same time

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