State Wheatstone bridge principle and deduce it using Kirchhoff's rules.

What is Kirchhoff's loop rule.

Extended Wheatstone Bridge

Balanced Wheatstone Bridge

Wheatstone bridge can be used

What is Kirchhoff's loop rule ?

State the two Kirchhoff's laws.

Questions|Wheatstone Bridge

(a) State Kirchhoff's rules for an electirc network. Using Kirchhoff's rules, obtain the balance condition in terms of the resistances of four arms of Wheatstone bridge. (b) In the meter bridge experimental set up, shown in the figure, the null point 'D' is obtained at a distance of 40 cm from end A of the meter bridge wire. If a resistance of 10 Omega is connected in series with R_(1), null point is obtained at AD = 60 cm. Calculate the values of R_(1) and R_(2).

Wheatstone Bridge and Symmetry Circuit