Q. 24 A dc potentiometer is designed to measure up to about 2 V with a slide wire of
800 mm. A standard cell of emf 1.18 V obtains balance at 600 mm. A test cell
is seen to obtain balance at 680 mm. The emf of the test cell is
(A) 1.00 V
(B) 1.34 V
(C) 1.50 V
(D) 1.70 V
Answer:(B)
Explanation: