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

An electron has a positive charge and a proton has no charge
An electron has a negative charge and a proton has a positive 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 applies to common, non-rechargeable flashlight batteries?

Common flashlight batteries are secondary wet-cell batteries
Common flashlight batteries are primary dry-cell batteries
None of these
Common flashlight batteries are secondary dry-cell batteries
Common flashlight batteries are primary wet-cell batteries

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

The current always has the same amplitude and phase for every part of the circuit
None of these
The total current leads the total voltage by less than 90
The total current is less than the sum of the currents through the resistance and inductance
The total current is equal to the sum of the currents through the resistance and inductance

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