**1. The problem statement, all variables and given/known data**

For an RLC circuit with a resistance of 13.0 kΩ a capacitance of 7.0 µF, and an inductance of 35.0 H. What frequency is needed to minimize the impedance?

A) 0.064 kHz

B) 0.010 kHz

C) 12 kHz

D) 2.1 kHz

**2. Relevant equations**

Xc = 2∏L

XL = 1/ (2∏C)

**3. The attempt at a solution**

i’m really unsure if i need to use the XL or the Xc equation?

2(3.14)*frequency*L

or 1/(2(3.14)*frequency*capacitance

i’ve been stuck on this one forever.. any guidance is much appreciated!

http://ift.tt/1p3m1ZC