Electronic Principles
Current and voltage are said to be in phase when:

their waveforms cross through zero and reach positive and negative peaks at the same time
they have the same amplitude and frequency
their waveforms are both ac or both dc
None of these
All of these

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

None of these
The same current always flows through every part of a parallel circuit
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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