To solve the problem below, you must rite a clear and convincing justification f

Question

To solve the problem below, you must rite a clear and convincing justification for accepting one of the possible anwsers choices as the best or most appropriate and for rejecting each of the other choices as less appropriate. Your reasons for rejecting choices are just as important as your reasons for choosing the best answer.

Which of following sections would most significantly reduce the impedance to current flow by a capacitor in an alternating-current circuit?

a) decreasing the frequency of the alternating current.

b) increasing the area of the capacitor plates.

c) Placing two capacitors in series in the circuit.

d) increasing the resistance in the circuit.

e) using a capacitor without a dielectric.

Please explain why & why not on each parts it would be greatly appreciated Thank you.

Explanation / Answer

Z=(R^2 + (wl -1/wc))^2

if inductor is not present,

Z=(R^2 + (1/wc)^2)^0.5

since the impedance is inversely proportional to frequency and capacitance,

the correct options are,

b) increasing the area of the capacitor plates.

since capacitace =eo*A/d

increasing the area would increase the capacitance and hence reduce the impedance due to capacitor

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.