Question
Download Solution PDFWhich of the following AC bridges is used to measure unknown frequency?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
AC bridges are used for measurement of various parameters such as inductance, capacitance, resistance, and frequency. Each bridge is suited for a particular application.
Wien’s Bridge is specifically designed to measure unknown frequency. It consists of a combination of resistors and capacitors in a particular arrangement such that the balance condition depends on frequency.
The frequency of an unknown source is calculated using the balance condition: \[ f = \frac{1}{2\pi R C} \]
Other Options:
- Kelvin’s Double Bridge – used for measuring very low resistance.
- De Sauty’s Bridge – used for comparing two capacitors.
- Maxwell’s Bridge – used for measuring inductance using a standard capacitor.
Last updated on Jul 1, 2025
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