A. 1.250V
B. 2.000V
C. 8.000V
D. 0.125V
Correct Answer:
Option B = 2.000V
Explanation
E = V + v
where E = emf of cell.
V = terminal p.d
v = loss voltage of the cell.
But from ohm’s law V=IR ; v = Iv
⟹ lost voltage = V = Ir
= 4 x 0.5
= 2.0v
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