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

The current always has the same amplitude and phase for every part of the circuit
The total current is less than the sum of the currents for the resistance and capacitance
None of these
The total current is equal to the sum of the currents for the resistance and capacitance
The total current. is greater than the sum of the currents for the resistance and capacitance

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Electronic Principles
The south pole of a magnet is the one:

that would be repelled by the north pole of another magnet
that would be attracted to the earths north magnetic pole
None of these
that has its molecules arranged in a random pattern
that would be attracted to the earth's south magnetic pole

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Electronic Principles
When a parallel RLC circuit is operating at its resonant frequency:

the difference between inductive and capacitive reactance is equal to the resistance
inductive reactance is greater than the capacitive reactance
inductive reactance is equal to the capacitive reactance
None of these
capacitive reactance is greater than the inductive reactance

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Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

None of these
Inductive reactance provides the only opposition to current flow
Combinations of resistance and inductive reactance provide any opposition to current flow
Resistances provide the only opposition to current flow
The ac voltage lags the current by 90 degree

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