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

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

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

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

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Electronic Principles
Current is

The force that causes electrons to flow
The number of free electrons in an atom
The flow of charged particles through a material
None of these
An imbalance of electrical charges

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

The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit
None of these
The same current flows through every part of a series circuit
The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it
The total current in a series circuit is equal to the total voltage multiplied by the total resistance

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Electronic Principles
Which one of the following phrases best describes residual magnetism?

The amount of magnetic flux that is not confined to the core material of an electromagnet
Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The force of attraction between the poles of a permanent and temporary magnetic field
The circular magnetic field that surrounds a conductor carrying a current
None of these

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