JAMB - Physics (2022 - No. 10)
A cell whose internal resistance is 0.55\(\Omega\) delivers a current of 4 A to an external resistor. The lost voltage of the cell is?
4.00 V
2.20 V
0.15 V
8.00 V
Explanation
Lost voltage = I x R
= 4 x 0.55
= 2.2V
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