Referring to the given circuit, what is ZTH if R1 is changed to 220 – McqOptions

MCQOPTIONS

1.	Referring to the given circuit, what is ZTH if R1 is changed to 220 Ω?
A.	225 ∠12.1° Ω
B.	225 ∠77.9° Ω
C.	46 ∠77.9° Ω
D.	46 ∠12.1° Ω
Answer» D. 46 ∠12.1° Ω

Discussion

No Comment Found

Related MCQs

In an ac circuit, power to the load peaks at the frequency at which the load impedance is the complex conjugate of the output impedance.
In order to get maximum power transfer from a capacitive source, the load must have an impedance that is the complex conjugate of the source impedance.
Thevenin's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent current source in parallel with an equivalent impedance.
The superposition theorem is useful for the analysis of single-source circuits.
Like Thevenin's theorem, Norton's theorem provides a method of reducing a more complex circuit to a simpler, more manageable form for analysis.
Norton's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent voltage source in series with an equivalent impedance.
A Thevenin ac equivalent circuit always consists of an equivalent ac voltage source and an equivalent capacitance.
The superposition theorem is useful for circuit analysis only in ac circuits.
Referring to the given circuit,
Referring to the given circuit, how much power, in watts, is delivered to the speaker at the determined frequency if = 4.5 V?