3 Questions
Thursday, 12 July 2018
8:11 AM
If we assume that the currents determined in step 5 are 90º apart, the magnitude of the total current can be computed by applying the Pythagorean Theorem to the current phasors. That is:
Compare the source current measured in RS1 (Table 7-6) with the current found by applying the Pythagorean Theorem to the other branch current magnitudes.

What factors account for differences between the two currents?

If the inductor were "open", what would happen to:
the total current in the circuit?

the phase angle between the source voltage and current?

If the frequency were increased, what would happen to:
the total current in the circuit?

the phase angle between the source voltage and current?

Sketch a phasor diagram showing all voltages and currents of the circuit (scales for voltage and current magnitudes can be different).
Answer:
