Question #72561
A cell of e.m.f E and Internal Resistance r, r connected in series with a resistor and ammeter, A current of 0.8A is Observed to pass when the resistor is 2ohm when another resistor of 5 ohms is connected in parallel with the 2ohms resistor, the new ammeter reading is 1.0A.

a. Draw circuit diagram to illustrate the two arragement
b. using circuit diagram drawn in a above write down the equation for e.m.f E of the cell in each case.
c. calculate the internal resistance and e.m.f of the cell
1
Expert's answer
2018-01-17T14:34:06-0500
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