Electronic Principles
What kind of battery is most likely included in a cordless electric knife?

Lead-acid battery
Zinc-carbon battery
Nicad battery
None of these
Mercury-cell battery

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Electronic Principles
The total inductance of a series inductor circuit is:

None of these
equal to the sum of the individual inductance values
equal to the source voltage divided by total current
less than the value of the smallest inductor
equal to the sum of the individual inductive-reactance values

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Electronic Principles
For a pure capacitor:

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

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

None of these
The algebraic sum of currents entering and leaving a point is equal to zero
The total current in a parallel circuit is less than the value of the smallest current
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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