Electronic Principles
At room temperature a conductor has low many holes?

many
Same number as free electrons
less than the free electrons
None of these
Only those produced by thermal energy

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Electronic Principles
One henry of inductance is defined as:

None of these
the amount of inductance required to change the frequency of a current by 1 Hz
the amount of counter emf required to reduce a current to 1 A
the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second
the number of turns of wire in an inductor multiplied by the amount of current flowing through it

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Electronic Principles
Which one of the following statements is true?

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

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Electronic Principles
Which one of the following is a statement of Kirchhoffs current law?

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

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