A cell whose internal resistance is 0.55Ω delivers a current of 4 A to an external resistor. The lost voltage of the cell is?

A cell whose internal resistance is 0.55Ω delivers a current of 4 A to an external resistor. The lost voltage of the cell is?
A. 4.00 V
B. 2.20 V
C. 0.15 V
D. 8.00 V
Correct Option: Answer is B
Lost voltage = I x R
= 4 x 0.55
= 2.2V

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