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Q. |
A bridge circuit works at a frequency of 2KHz, the following can be used as detectors for detection of null conditions in the bridge: |
A. | vibration galvanometers and headphones |
B. | headphones and tunable amplifiers. |
C. | vibration galvanometers and tunable amplifiers. |
D. | vibration galvanometers, headphones and tunable amplifiers. |
Answer» B. headphones and tunable amplifiers. |
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