Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

Inductive reactance provides the only opposition to current flow
None of these
The ac voltage lags the current by 90 degree
Combinations of resistance and inductive reactance provide any opposition to current flow
Resistances provide the only opposition to current flow

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Electronic Principles
Voltage is

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

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Electronic Principles
Which one of the following is a statement of Kirchhoffs current law?

The current through a resistance is proportional to the value of resistance and the IR drop across it
None of these
The algebraic sum of currents entering and leaving a point is equal to zero
The algebraic sum of currents in a loop is equal to zero
The total current in a parallel circuit is less than the value of the smallest current

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