Electronic Principles
Voltage is

The number of free electrons in an atom
The flow of charged particles through a material
Trie force that causes electrons to flow
The smallest electrically charged particle
None of these

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Electronic Principles
Which one of the following principles best describes the basic operation of an electromagnet?

None of these
Current flowing through a conductor generates a magnetic field
Like magnetic poles repel, while unlike poles attract
Like magnetic poles attract, while unlike poles repel
Current is induced in a conductor that is moving through a magnetic field

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

The total voltage is less than 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
The total voltage lags the total current by less than 90
The total voltages is equal to the sum of the voltages across the resistance and inductance
None of these

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

The total current in a parallel circuit is always less than the smallest amount of current
The same current always flows through every part of a parallel circuit
None of these
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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