Consider the following statements regarding Maxwell's bridge : 1. Maxwell's bridge is limited to measurement of low Q inductors. 2. The final balance equations of Maxwell's bridge are dependent of frequency. 3. The balance equation of Maxwell's bridge is dependent of losses associated with the inductor. Which of the above statements is/are correct?
To determine the correct statements regarding Maxwell's bridge, we need to analyze each statement based on the principles and characteristics of Maxwell's bridge used in electrical circuit measurement.
This statement is correct. Maxwell’s bridge is particularly suited for measuring inductors with low quality factor (Q). This is because the bridge configuration effectively accounts for the resistance associated with the inductor's winding resistance, providing an accurate measure for low-Q devices where resistive losses are significant.
This statement is incorrect. The balance condition for Maxwell's bridge is independent of frequency. This is one of the reasons Maxwell's bridge is preferred for measuring inductances, as changes in frequency do not affect the accuracy of the balance condition.
This statement is correct. Maxwell’s bridge takes into account the resistive losses in the inductor, which affect the bridge balance condition. These losses are typically modeled as a resistance in series with the inductance, which must be balanced for accurate measurement.
Based on the analysis of the statements:
Thus, the correct answer is 1 and 3.
Maxwell bridge is used to measure
Which method is especially suitable for the measurement of small inductances?
Which of the following method is used for the precise measurement of self and mutual inductance and capacitance of a bridge network with an alternating current supply?
Hay’s bridge is used to measure inductances of coils having:
Megger is a measuring instrument, used for the measurement of: