Consider the following circuit, where AB is one metre long potentiometer wire. If both galvanometers G, and G show null deflection, then the ratio of emf's E, /E, is

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7. Consider the following circuit, where
AB is one metre long potentiometer
wire. If both galvanometers G, and G
show null deflection, then the ratio of
emf's E,/E, is
E k
In
60cm-
40cm
A
lL G)
G)
oihoro
E2
Salmti
(a) 0.67
(b) 1.5
(c) 1.0
(d) Cannot be determined
Transcribed Image Text:7. Consider the following circuit, where AB is one metre long potentiometer wire. If both galvanometers G, and G show null deflection, then the ratio of emf's E,/E, is E k In 60cm- 40cm A lL G) G) oihoro E2 Salmti (a) 0.67 (b) 1.5 (c) 1.0 (d) Cannot be determined
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