Virtual Labs IIT Roorkee
Electrical Measurements Laboratory

Wheatstone Bridge


MCB


WHEATSTONE BRIDGE KIT

GALVANOMETER

P/Q Ratio

S1

S2

S3

S4

FORMULA

1. Ratio P/Q(Multipliers) = Ratio Arm

2. R = S * Ratio

3. Adding values of x1,x10, x100 & x1000 Ω to find S

Where R,S are the Unknown Resistance and Total Resistance respectively.

OBSERVATION TABLE

S.No. Total resistance(S) Ω Ratio Ω R = S * Ratio (Ω)