Current Electricity and Electrical InstrumentHard
Question
In the circuit shown E, F, G and H are cells of e.m.f 2V, 1V, 3V and 1V respectively and their internal resistances are 2Ω, 1Ω, 3Ω and 1Ω respectively then -
Options
A.VD - VB = - 2/13V
B.VD - VB = 2/13V
C.VG = 21/13V = potential difference across G
D.VH = 19 /13V = potential difference across H
Solution
Eeq = 
req =
A
VB > VD = 2
VD > VB = - 
From Figure 1 :
VB + 4i1 - 2 - VD = 0 ; - 2 + 4i = 0
i =
A ; VG = 3 - 3 × 
VG =
V , VH = 1 + 1 × 
= VH = 
V
req =
AVB > VD = 2
VD > VB = - From Figure 1 :
VB + 4i1 - 2 - VD = 0 ;
- 2 + 4i = 0i =
A ; VG = 3 - 3 × VG =
V , VH = 1 + 1 × = VH = VCreate a free account to view solution
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