Complex numbers are useful in ac circuits when the reactance makes it necessary to consider the ______________ angle.
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Q3: If series impedances are in polar form,
Q4: In general, the reciprocal of an angle
Q5: The reciprocal of impedance is _.
Q6: The reciprocal of reactance is _.
Q7: _ numbers refer to a numerical system
Q9: The angle of rotation is the _
Q10: An angle of 90° or +j is
Q11: When multiplying or dividing complex numbers, it
Q12: When dividing a real number by an
Q13: In electrical terms the complex impedance (4
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