Question

In a sinusoidally driven series RLCcircuit, the inductive resistance is XL= 200 , the capacitive reactance is XC= 100 , and the resistance is R= 50 . The current and applied emf would be in phase if:
A) the resistance is increased to 100, with no other changes
B) the resistance is increased to 200 , with no other changes
C) the inductance is reduced to zero, with no other changes
D) the capacitance is doubled, with no other changes
E) the capacitance is halved, with no other changes

Answer

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