A bridge circuit works at a frequency of 2 kHz. Which of the following – McqOptions

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1.	A bridge circuit works at a frequency of 2 kHz. Which of 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» C. Vibration galvanometers and tunable amplifiers

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