Question

The four arms of  a  bridge at balance are: arm ab, an unknown   impedance; arm bc, 

     a  resistance  of 100 Ω; arm cd, a capacitor of 0.4 µF in series with resistance of 500 Ω; 

     arm da, a resistance of  300 Ω. If the supply frequency is 50Hz, determine the value of 

     unknown impedance.

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Answer 1

Answer:

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