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

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Electronic Principles
Which one of the following is a direct statement of Ohm's law?

The algebraic sum of currents entering and leaving a point is equal to zero
The total resistance of a parallel circuit is less than the value of the smallest resistance
None of these
The algebraic sum of voltages in a loop is equal to zero
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it

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Electronic Principles
Which one of the following statements is true?

Power dissipation of a pure capacitor increases with operating frequency
None of these
Power dissipation of a pure capacitor decreases with operating frequency
All of these
There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency

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