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Blackheart King Sumit Grade:
        

Please describe me about wheatstone bridge, its applications and conditions where it can and can't be used.


I will very very thankful to you

5 years ago

Answers : (2)

DIVYA SHARMA
16 Points
										

OK WHEATSTONE BRIDGE IS NOTHING BUT JUST A CIRCUIT WHICH FOLLOWS KIRCHOFFS LOOP RULE,


I WILL EXPLAIN U ON BASIC OF NCERT DIAGRAM.


JUST BEFORE I EXPLAIN U TAKE THIS BASIC CONVENTION ALSO


JUNCTION RULE:SUM OF CURRENT ENTERING A JUNCTION=SUM OF CURRENT LEAVING.


NOW SEE NCERT DIAGRAM:


I1=I3,I2=I4(NO CURRENT GOES THROUGHT GALV. ARM)


IN CLOSED LOOP ABDA:


V2-V1=0(LOOP RULE)(AT JUNCTION AS CURRENT IS NEGATIVE POTENTIAL IS NEGATIVE)


HEANCE I2R2 - I1R1=0 =>I2R2=I1R1........(1)


SIMILARLY IN CLOSED LOOP BCDB:


I2R4=I1R3......(2)


DIVIDE THEM U GET (R1/R2 = R3/R4)


THIS IS WHEATSTONE BRIDGE(MAIL AGAIN IF U NEEDED ITS AIM AND CONS.) APPLICATION:METRE BRIDGE APPLICATIONS

5 years ago
DIVYA SHARMA
16 Points
										

SORRY FOR LAST LINES:


APPLICATION OF WHEATSTONE BRIDGE LIES IN METER BRIDGE AN POTENTIOMETER


U WILL DO THESE IN UR PRACTICALS ALSO:


METER BRIDGE:


1. TO FIND RESISTIVITY OF GIVEN MATERIAL.


2. TO FIND VALUE OF UNKNOWN RESISTANSE USING METER BRIDGE.


POTENTIOMETER:


1.TO FIND OUT EMF OF AN UNKNOWN BATTERY USING 1 KNOWN BATTERY


HOPE U ARE CLEAR NOW

5 years ago
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