For the ac bridge circuit shown in the figure at balance,

For the ac bridge circuit shown in the figure at balance, the value of R_d, L_d and Q_d will be respectively

From balance condition

R_aR_c = (R_djωL_d	R
	1 + lω_cbR_b

or (1 + ω_cbR_b)R_aR_c = R_b(R_d + jωL_d
or R_bR_d = R_aR_c

∴ R_d =	R_aR_c
	R_b

and ωC_bR_bR_c = ωR_bL_d
or L_d = R_aR_cC_b

	R_a	R_b;	R_aR_c	;ωC_bR_b
	R_c		C_b

	R_b	R_c;	R_aR_c	;ωC_bR_b
	R_a		C_b

	R_b	R_c;R_aR_cC_b;ωC_bR_c
	R_a

	R_a	R_c;R_aR_cC_b;ωC_bR_b
	R_b