Mell How do you do an Anderson bridge experiment?
The bridge is balanced by a steady current by replacing the headphone H by moving coil galvanometer and A.C source by a battery. This is done by adjusting the variable resistance, r. After a steady balance has been obtained, inductive balance is obtained by using the A.C source and headphone.
How Maxwell bridge differ from Anderson bridge?
By Anderson’s bridge, one can measure inductance by utilizing other circuit components like resistors and capacitor. In Maxwell’s bridge, the inductance is calculated by comparing it with a standard variable capacitance.
What is the other name of Anderson bridge?
The bridge is the advanced form of Maxwell’s inductance capacitance bridge. In Anderson bridge, the unknown inductance is compared with the standard fixed capacitance which is connected between the two arms of the bridge.
What is the use of Anderson’s bridge write its relevant formula?
Andersons Bridge Construction and Working. The Anderson’s Bridge is an A.C bridge used to measure the self-inductance of the coil. It enables to measure the inductance of a coil using a standard capacitor and resistors. It does not require a repeated balancing of the bridge.
What is the principle of Anderson bridge?
It enables measurement of inductance by utilizing other circuit components like resistors and capacitors. Anderson’s bridge was invented by Alexander Anderson in 1891. He modified Maxwell’s inductance capacitance bridge so that it gives very accurate measurement of self-inductance.
What is the disadvantages of Maxwell Bridge?
The disadvantages of a Maxwell Bridge are: The variable standard capacitor is very expensive. The bridge is limited to measurement of low quality coils (1 < Q < 10) and it is also unsuitable for low value of Q (i.e. Q < 1) from this we conclude that a Maxwell bridge is used suitable only for medium Q coils.
Why do we use Wein bridge?
The Wien bridge is a type of bridge circuit that was developed by Max Wien in 1891. The bridge consists of four resistors and two capacitors. Wien’s bridge is used for precision measurement of capacitance in terms of resistance and frequency. It was also used to measure audio frequencies.
What is Q factor in Anderson bridge?
The lower the Q-factor of the coil the more accurate the Anderson bridge will be. Anderson bridge is a modification of Maxwell-inductance capacitance bridge and is known to be the most accurate bridge for the measurement of self – inductance over a wide range of values, from a few micro-Henries to several Henries.
What is the disadvantages of Maxwell bridge?
Where Anderson Bridge is used?
The Anderson Bridge (Figure 1) is used to measure an unknown inductance in terms of a known capacitance and resistance. Ander- son’s method is capable of precise measurements of inductance over a wide range of values from a few micro-Henrys to several Henrys.
Why is de sauty bridge used?
De-Sauty bridge is used to measure the capacitance. And the bridge balance is obtained when both the capacitors are perfect.
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