Wheatstone Bridge Concept | Thevenin Equivalent Circuit of Wheatstone Bridge Theory | Wheatstone Bridge Circuit Diagrams
Wheatstone Bridge Definition:-
This is the simplest bridge to measure resistance. Figure 14.22 shows the schematic of a Wheatstone bridge. The bridge has four resistive arms together with a source of emf and detector, usually a galvanometer or other sensitive current meter.
If the sensitivity of the galvanometer is not sufficient to indicate the balance position to the required degree of precision, then the measured value of R, can have some error.
Thevenin Equivalent Circuit of Wheatstone Bridge:-
To find whether or not the galvanometer has the required sensitivity to detect an unbalance condition, it is necessary to calculate the galvanometer current. The Thevenin equivalent circuit is determined by looking into the galvanometer terminals 'c' and 'd' no as shown in Fig. 14.23.
NOTE:- The Kelvin bridge is more accurate than the Wheatstone bridge and is used for measuring very low resistances.
Trending Posts This Month:-
Solved Examples Problems On Star-Delta Transformation Or Conversion
Solved problem based on Norton’s Theorem
Solved Problem Based On Superposition Theorem
Example Solved Problems Based On Thevenin Theorem Circuit
Tricky Solutions For Equivalent Series-parallel Resistance Problems With Examples
Solved Problem Based On Maximum Power Transfer Theorem
Mesh-analysis - Loop-analysis -Maxwell's Current Analysis | Electrical
Delta To Star Transformation Or Delta To Star Conversion and Its Formulas
Superposition Theorem And Method Of Solving Superposition Theorem
Reading Problems Based On Superposition Theorem Example & Solved Formula's
No comments:
Post a Comment