In the Owen’s bridge shown in below figure, Z1 = 200∠60°, Z2 = 400∠-90°, Z3 = 300∠0°, Z4 = 400∠30°. Then,(a) Bridge is balanced with given impedance values(b) Bridge can be balanced, if Z4 = 600∠60°(c) Bridge can be balanced, if Z3 = 400∠0°(d) Bridge cannot be balanced with the given configurationI had been asked this question in examination.This interesting question is from Problems Involving Coupling Coefficient in chapter Resonance & Magnetically Coupled Circuit of Network Theory

In the Owen’s bridge shown in below figure, Z1 = 200∠60°, Z2 = 40

1.	In the Owen’s bridge shown in below figure, Z1 = 200∠60°, Z2 = 400∠-90°, Z3 = 300∠0°, Z4 = 400∠30°. Then,(a) Bridge is balanced with given impedance values(b) Bridge can be balanced, if Z4 = 600∠60°(c) Bridge can be balanced, if Z3 = 400∠0°(d) Bridge cannot be balanced with the given configurationI had been asked this question in examination.This interesting question is from Problems Involving Coupling Coefficient in chapter Resonance & Magnetically Coupled Circuit of Network Theory
Answer» Right choice is (d) Bridge cannot be BALANCED with the given configuration Best explanation: For Bridge to be balanced, the product of impedances of the OPPOSITE arm should be equal in MAGNITUDE as well as phase angle. Here Z3 Z2 ≠ Z1 Z4 for whatever CHOSEN VALUE. Therefore the Bridge cannot be balanced.

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