Electronic Principles
What is the smallest number of polarities required for current flow?

One - a negative terminal
Two - a negative terminal and a positive terminal
Three - negative, positive and neutral terminals
Four - two negative and two positive
None of these

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Electronic Principles
The total impedance of a parallel RLC circuit:

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

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Electronic Principles
Which one of the following statements is true for current flowing in a parallel circuit?

The same current always flows through every part of a parallel circuit
None of these
The total current in a parallel circuit is equal to the total voltage multiplied by the total resistance
The amount of current flow through each branch of a parallel circuit can be different, depending on the resistance of each branch part and the amount of voltage applied to it
The total current in a parallel circuit is always less than the smallest amount of current

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