Question: For the bridge shown in figure above Z<sub>1 </sub>= 200Ω ∠30°, Z<sub>2 </sub>= 150Ω ∠0°, Z<sub>3 </sub>= 250Ω ∠-40°. In order that the bridge can be balanced Z<sub>4 </sub>should be :
Answer:
MCQ: For the bridge shown in figure above Z<sub>1 </sub>= 200Ω ∠30°, Z<sub>2 </sub>= 150Ω ∠0°, Z<sub>3 </sub>= 250Ω ∠-40°. In order that the bridge can be balanced Z<sub>4 </sub>should be :
Correct Answer:
A. 187.5Ω ∠-70°
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Related Questions
- 1. For the bridge shown in figure above , arm ab consists of resistance in series with an inductance, arms bc and ad consists of pure resistance. in order to achieve balance arm cd should consist of
- 2. The equations under balance conditions for a bridge are :R<sub>1</sub> = R<sub>2</sub> R<sub>3</sub> / R<sub>4 </sub>and L<sub>1 </sub>= R<sub>2</sub>R<sub>3</sub>C<sub>4</sub>Where R1<sub> </sub> and L1 are respectively unknown resistance and inductance.In order to achieve converging balance
- 3. Maxwell’s inductance-capacitance bridge is used for measurement of inductance of :
- 4. The advantage of Hay’s bridge over Maxwell’s inductance-capacitance bridge is because
- 5. In D’Sauty’s bridge (unmodified form) it is :
- 6. Frequency can be measured by using :
- 7. A bridge circuit works at a frequency of 2 kHz. The following can be used as detectors for detection of null conditions in the bridge
- 8. Wagner’s Earth devices are used in a.c bridge circuit for :
- 9. A bridge circuit works at a frequency of 2 kHz. Which of the following can be used as null detector in such a bridge?
- 10. Under balanced condition of a bridge for measuring unknown impedance, if the detector is suddenly taken out
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