What is sinϕ from the impedance triangle?
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1) The impedance of an inductor is frequency dependent2) The impedance of a capacitor is frequency dependent.3) The impedance of a resistor is frequency dependent.4) The line freq. in America is 60 Hz and in Europe 50 Hz.5) The impedance of the same RCL circuit in America will be lessthan in Europe.
The impedance in one part of a series circuit is 3 + 2j ohms, and the impedance in the other part of the circuit is 4 - 3j ohms. Add these complex numbers to find the total impedance in the circuit.
A 2500ohm resistor is in series with a 450mH inductor is driven by an ac power supply. At what frequency is the impedance doubles that of the impedance at 60Hz?