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Question 77
When two identical batteries of internal resistance 1 Ω each are connected in series across a resistor R, the rate of heat produced in R is $$J_1$$. When the samebatteries are connected in parallel across R, the rate is $$J_2$$. If $$J_1 = 2.25 J_2$$ then the value of R in Ω is
Correct Answer: 4
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