A cell has an emf of 1.5 V. When shortcircuited, it gives a current of 3A. The internal resistance of the cell is
A. 0.5 Ω
B. 2.0 Ω
C. 4.5 Ω
D. \(\frac { 1 }{ 4.5 }\) Ω
Answer:A
A cell has an emf of 1.5 V. When shortcircuited, it gives a current of 3A. The internal resistance of the cell is
A. 0.5 Ω B. 2.0 Ω C. 4.5 Ω D. \(\frac { 1 }{ 4.5 }\) Ω