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

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

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Electronic Principles
A farad is defined as the amount of capacitance necessary for:

storing 1 V for 1 second
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
causing an ac phase shift greater than 90 degree
None of these
dissipating 1 W of power

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

The same current always flows through every part of a parallel circuit
None of these
The amount of current flow through each branch of a parallel circuit can be different, depending on the resistance of each branch part and the amount of voltage applied to it
The total current in a parallel circuit is equal to the total voltage multiplied by the total resistance
The total current in a parallel circuit is always less than the smallest amount of current

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