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A bridge circuit works at a frequency of 3 kHz. Which detector can be used for detecting the null conditions in the bridge?
- a)Vibration galvanometer and tunable amplifiers.
- b)Vibration galvanometer and head phones.
- c)Headphones and tunable amplifiers.
- d)Vibration galvanometer, headphones and tunable amplifiers.
Correct answer is option 'C'. Can you explain this answer?
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A bridge circuit works at a frequency of 3 kHz. Which detector can be ...
For 3 kHz frequency headphone (Range - 250 Hz to 4 kHz) and tuned amplifier detector (Range - 10 Hz to 100 kHz) will be used.
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A bridge circuit works at a frequency of 3 kHz. Which detector can be ...
Understanding Bridge Circuit Detection
In a bridge circuit, particularly in applications like the Wheatstone bridge, detecting the null condition (when the bridge is balanced) is crucial. At a frequency of 3 kHz, specific detectors are more suitable for this role.
Detection Methods
- Vibration Galvanometer:
- A sensitive instrument capable of detecting small changes in current.
- Responsive to AC signals, making it effective for frequency applications like 3 kHz.
- Headphones:
- Can serve as an auditory detector for the bridge circuit.
- When the bridge is balanced, the sound intensity will minimize or disappear, indicating a null condition.
- Tunable Amplifiers:
- Useful for amplifying the output signal at a desired frequency.
- They can enhance the sensitivity of the detection process, making it easier to identify the null point.
Why Option C is Correct
- The combination of vibration galvanometers, headphones, and tunable amplifiers provides a comprehensive detection strategy:
- Vibration galvanometers offer precise measurement of current changes.
- Headphones allow for immediate auditory feedback on the balance condition.
- Tunable amplifiers ensure that the signal is amplified effectively at the working frequency, facilitating accurate detection.
By using all three detectors, the bridge circuit can achieve a reliable and effective null detection method, making option 'C' the most suitable choice.
In a bridge circuit, particularly in applications like the Wheatstone bridge, detecting the null condition (when the bridge is balanced) is crucial. At a frequency of 3 kHz, specific detectors are more suitable for this role.
Detection Methods
- Vibration Galvanometer:
- A sensitive instrument capable of detecting small changes in current.
- Responsive to AC signals, making it effective for frequency applications like 3 kHz.
- Headphones:
- Can serve as an auditory detector for the bridge circuit.
- When the bridge is balanced, the sound intensity will minimize or disappear, indicating a null condition.
- Tunable Amplifiers:
- Useful for amplifying the output signal at a desired frequency.
- They can enhance the sensitivity of the detection process, making it easier to identify the null point.
Why Option C is Correct
- The combination of vibration galvanometers, headphones, and tunable amplifiers provides a comprehensive detection strategy:
- Vibration galvanometers offer precise measurement of current changes.
- Headphones allow for immediate auditory feedback on the balance condition.
- Tunable amplifiers ensure that the signal is amplified effectively at the working frequency, facilitating accurate detection.
By using all three detectors, the bridge circuit can achieve a reliable and effective null detection method, making option 'C' the most suitable choice.
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A bridge circuit works at a frequency of 3 kHz. Which detector can be used for detecting the null conditions in the bridge?a)Vibration galvanometer and tunable amplifiers.b)Vibration galvanometer and head phones.c)Headphones and tunable amplifiers.d)Vibration galvanometer, headphones and tunable amplifiers.Correct answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2026 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A bridge circuit works at a frequency of 3 kHz. Which detector can be used for detecting the null conditions in the bridge?a)Vibration galvanometer and tunable amplifiers.b)Vibration galvanometer and head phones.c)Headphones and tunable amplifiers.d)Vibration galvanometer, headphones and tunable amplifiers.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bridge circuit works at a frequency of 3 kHz. Which detector can be used for detecting the null conditions in the bridge?a)Vibration galvanometer and tunable amplifiers.b)Vibration galvanometer and head phones.c)Headphones and tunable amplifiers.d)Vibration galvanometer, headphones and tunable amplifiers.Correct answer is option 'C'. Can you explain this answer?.
A bridge circuit works at a frequency of 3 kHz. Which detector can be used for detecting the null conditions in the bridge?a)Vibration galvanometer and tunable amplifiers.b)Vibration galvanometer and head phones.c)Headphones and tunable amplifiers.d)Vibration galvanometer, headphones and tunable amplifiers.Correct answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2026 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A bridge circuit works at a frequency of 3 kHz. Which detector can be used for detecting the null conditions in the bridge?a)Vibration galvanometer and tunable amplifiers.b)Vibration galvanometer and head phones.c)Headphones and tunable amplifiers.d)Vibration galvanometer, headphones and tunable amplifiers.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bridge circuit works at a frequency of 3 kHz. Which detector can be used for detecting the null conditions in the bridge?a)Vibration galvanometer and tunable amplifiers.b)Vibration galvanometer and head phones.c)Headphones and tunable amplifiers.d)Vibration galvanometer, headphones and tunable amplifiers.Correct answer is option 'C'. Can you explain this answer?.
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