RC Circuits A positive angle of 30° is equivalent to a negative angle of –330° –60° –30° –180° –330° –60° –30° –180° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist: R = 5XC R > XC R < XC R = XC R = 5XC R > XC R < XC R = XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A capacitor with 150Ω of capacitive reactance is across an ac source. The impedance, expressed in polar form, is Z = 150 angle 180° Ω Z = 150 angle – 90° Ω Z = 150 –90° Ω Z = 150 Z = 150 angle 180° Ω Z = 150 angle – 90° Ω Z = 150 –90° Ω Z = 150 ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the source voltage decreases, the impedance of a parallel RC circuit decreases increases does not change decreases to zero decreases increases does not change decreases to zero ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 2 kΩ resistor and a 0.002 μF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is 84.5 mW 845 mW 130 mW 13 mW 84.5 mW 845 mW 130 mW 13 mW ANSWER DOWNLOAD EXAMIANS APP
RC Circuits The complex number 40 angle 55° is equivalent to 45.88 + j65.52 40 + j40 22.94 + j32.76 55 + j55 45.88 + j65.52 40 + j40 22.94 + j32.76 55 + j55 ANSWER DOWNLOAD EXAMIANS APP
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