Question

Four cells each of e.m.f. 2 V and internal resistance 0.1 N are connected in series. The combination is connected
in series to an ammeter of negligible resistance, a 1.6 N resistor and an unknown resistor R1. The current in the
circuit is 2 A.
[4]
Draw a labelled circuit diagram for the above arrangement and calculate:
(i) The total resistance in the circuit,-
(ii) The total e.m.f.,
(iii) The value of R1,
(iv) The potential difference across R1.
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Answer 1

What is ampeair

What is unit