Question

A 1.0 mH inductance, a 10 $\mu F$ capacitance and a 5.0 ohm resistance are connected in series to an a.c. source. It is found that the inductor and the capacitor show equal reactances. The reactance should be nearest to

• A. 100 ohm
• B. 32 ohm
• C. 10 ohm
• D. 3.2 ohm

Answer 1

Answer: (C)

10 ohm

Answer 2

$\omega = (1/LC)^{1/2}$ and $X_L = \omega L .$