In the bridge shown, Z1 = 300 ohm, Z2 = 400 – j300 ohm, Z3 = 200 + j100 ohm. The Z4 at balance is(a) 400 + j300 ohm(b) 400 – j300 ohm(c) j100 ohm(d) -j900 ohmI had been asked this question by my college director while I was bunking the class.This interesting question is from Sinusoidal Steady State Analysis topic in portion Signals and Amplifiers of Electronic Devices & Circuits

In the bridge shown, Z1 = 300 ohm, Z2 = 400 – j300 ohm, Z3 = 200 + j

1.	In the bridge shown, Z1 = 300 ohm, Z2 = 400 – j300 ohm, Z3 = 200 + j100 ohm. The Z4 at balance is(a) 400 + j300 ohm(b) 400 – j300 ohm(c) j100 ohm(d) -j900 ohmI had been asked this question by my college director while I was bunking the class.This interesting question is from Sinusoidal Steady State Analysis topic in portion Signals and Amplifiers of Electronic Devices & Circuits
Answer» CORRECT answer is (b) 400 – j300 ohm To explain I would SAY: Use Z1 X Z4 = Z2 x Z3.

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