Electronic Principles
Norton's theorem replaces a complicated circuit facing a load by an

Ideal current source and series resistor
None of these
Ideal current source and parallel resistor
Ideal voltage source and series resistor
Ideal voltage source and parallel resistor

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

None of these
The algebraic sum of currents entering and leaving a point is equal to zero
The current through a resistance is proportional to the value of resistance and the IR drop across it
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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Electronic Principles
Which one of the following statements is true for the voltage in a parallel RL circuit?

The total voltages 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
None of these
The total voltage is equal to the sum of the voltages across the resistance and inductance

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Electronic Principles
Which one of the following statements most accurately describes the nature of inductive reactance?

Inductive reactance is an opposition to current flow in dc circuits
Inductive reactance is another term for counter emf
Inductive reactance is an opposition to current flow in ac circuits
Inductive reactance is a force that tends to overcome the effects of counter emf
None of these

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