Wheatstone Bridge: AC Source Effects on Balancing Condition

[mkbh_10]

Homework Statement

Will the balancing condition get modified in Wheatstone bridge if AC source is used instead of a battery ?

Homework Equations

The Attempt at a Solution

 

[Meir Achuz]

No, but if you use a galvanometer (as is usual) as a detector, it wouldn't move.
You would need an AC meter, which probably woudn't be as sensitive as a galvanometer.

 

[Phrak]

No, but if you use a galvanometer (as is usual) as a detector, it wouldn't move.
You would need an AC meter, which probably woudn't be as sensitive as a galvanometer.

A hot wire galvanometer would also work-- if you could find them.

In fact, instruments are made that are AC bridges. Select a frequency, amplitude and the spieces of impedence, inductance, ESR and so forth, that you want numbers for, and they display the effective values.