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

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

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

The total resistance in a parallel circuit is equal to the average value of the individual resistances
The total resistance of a parallel circuit is equal to the total voltage
The total resistance of a parallel circuit is always less than the value of the smallest resistance
None of these
The total resistance is equal to the sum of the individual resistances in a parallel circuit.

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

The total voltage is equal to the sum of the voltages across the individual branches in a parallel circuit
The total voltage in a parallel circuit is equal to the average value of the individual voltages
The total voltage of a parallel circuit is the same as the voltages across each branch
The total voltage in a parallel circuit is always less than the value of the smallest voltage
None of these

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Electronic Principles
Current is

The number of free electrons in an atom
The force that causes electrons to flow
An imbalance of electrical charges
The flow of charged particles through a material
None of these

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