The value of unknown inductance is found by using which of the following relation?

• A. Lx = \(\frac{R_1 L_3}{R_2}\)
• B. Lx = \(\frac{R_2}{R_1}\)
• C. Lx = \(\frac{L_3}{R_1}\)
• D. Lx = \(\frac{R_2 L_3}{R_1}\)