Electronic Principles
Current is

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

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

An electron has a negative charge and a proton has a positive charge
An electron has a positive charge and a proton has no charge
None of these
An electron has a positive charge and a proton has a negative charge
An electron has a negative charge and a proton has no charge

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

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

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