Consider an R L C circuit with R = 130 , L = 515 mH , and C = 0.270 F . Part A A

ID: 1442543 • Letter: C

Question

Consider an RLC circuit with R = 130 , L = 515 mH , and C = 0.270 F .

Part A

At what frequency is this circuit in resonance?

427

Correct

Part B

Find the impedance of this circuit if the frequency has the value found in part A, but the capacitance is increased to 0.295 F .

Part C

What is the power factor for the situation described in part B?

please help

Consider an RLC circuit with R = 130 , L = 515 mH , and C = 0.270 F .

Part A

At what frequency is this circuit in resonance?

f =

427

Correct

Part B

Find the impedance of this circuit if the frequency has the value found in part A, but the capacitance is increased to 0.295 F .

Z = ?

Part C

What is the power factor for the situation described in part B?

cos = ?

please help

part b )

Z = sqrt(R^2+ (XL-Xc)^2)

but at resonance XL = Xc

Z = R

Z = 130 ohm

part c )

cosphi = R/Z

here Z = R

cosphi = 1