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Electrical Theory: Reactance

10 question stems · Page 1 of 1

Question 1

As the American Wire Gauge (AWG) number increases, what happens to the cross-sectional area of the conductor?

Question 2

Which of the following describes the behavior of current in a purely inductive AC circuit?

Question 3

Which describes the behavior of current in a purely inductive AC circuit?

Question 4

You are asked to design feeders for a small commercial occupancy with a calculated demand load of 180 kVA at 120/208 V, 3-phase. What minimum ampacity should the main feeder have, based purely on load current?

Question 5

What is the effect of increasing the frequency on the capacitive reactance (Xc) of a circuit?

Question 6

In an AC circuit, what is the term for the opposition to current flow caused specifically by a coil's magnetic field?

Question 7

What happens to the current in a purely capacitive circuit if the frequency of the AC source is doubled?

Question 8

What is the relationship between voltage and current in a purely inductive AC circuit?

Question 9

Which electrical property opposes the change in current flow in an AC circuit?

Question 10

Calculate the total capacitance of two 10µF capacitors connected in parallel.