Please Select Chapter First !!
In the circuit shown in the adjoining figure, the current between B and D is zero, the unknown resistance is of
(1) 4 Ω
(2) 2 Ω
(3) 3 Ω
(4) em.f. of a cell is required to find the value of X
(2) By balanced Wheatstone bridge condition 16X=40.5
⇒ X=84=2 Ω