Electronic Principles
What is the primary difference between primary and secondary cell batteries?

Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged
Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged
None of these
Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs

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

The total voltage is equal to the sum of the voltages across the resistance and inductance
The voltage always has the same amplitude and phase for every part of the circuit
None of these
The total voltages is less than the sum of the voltages across the resistance and inductance
The total voltage lags the total current by less than 90

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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 total current in a parallel circuit is always less than the smallest amount of current
The total current in a parallel circuit is equal to the total voltage multiplied by the total resistance
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

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