Electronic Principles
What is a free electron?

An electron that costs nothing
An electron that has twice the amount of charge of a normal electron
An electron that has no electrical charge
An electron that has been freed from its parent atom
None of these

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Electronic Principles
Which one of the following statements is true for the currents in a series 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 less 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 current always has the same amplitude and phase for every part of the circuit

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Electronic Principles
In a pure inductor:

ac current leads the voltage by 90 degree
ac current and voltage are exactly in phase
ac current is converted to dc voltage
ac current lags the voltage by 90 degree
None of these

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