Electronic Principles
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?

P = I2R
None of these
I = P/E
P = IE
P = E2/R

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

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

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Electronic Principles
The total impedance of a parallel RLC circuit:

is equal to the sum of the values of resistance, inductive reactance and capacitive reactance
is maximum at the resonant frequency
always decreases as the applied frequency increases
always increases as the applied frequency increases
None of these

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