Electronic Principles
Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?

P = E2/R
R = E2/P
None of these
P = PR
I = P/E

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Electronic Principles
Which one of the following is a statement of KirchhofFs voltage law?

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

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Electronic Principles
A farad is defined as the amount of capacitance necessary for:

storing 1 V for 1 second
causing an ac phase shift greater than 90 degree
None of these
dissipating 1 W of power
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing

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

The total current is less than the sum of the currents for the resistance and capacitance
The total current is greater than the sum of the currents for the resistance and capacitance
None of these
The total current is equal to the sum of the currents for the resistance and capacitance
The current always has the same amplitude and phase for every part of the circuit

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

The total voltage is equal to the sum of the individual voltages in a series circuit
The total voltage in a series circuit is always less than the value of the smallest voltage
None of these
The total voltage in a series circuit is equal to the average value of the individual voltages
The total voltage of a series circuit is equal to the total current divided by the total resistance

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