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A 4.8 V battery cell delivers a current of 3 A through an external resistance of 1.2 Ohms Calculate the internal resistance in Ohms?
Wiki User
∙ 13y ago
4.8 / (1.2 + R) = 3
4.8 = 3 (1.2 + R)
4.8 = 3.6 + 3R
1.2 = 3R
0.4 ohm = R
Wiki User
∙ 13y ago
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