Q3 of 37 Page 1

If the ammeter in the given circuit shown in the diagram reads 2A, the resistance R is


Since, the two resistances are connected in series. Total resistance (R’) in the circuit is equal to (2+R).


According to Ohm’s law


V=I×R’ = I× (2+R)



R= 3-2 = 1 Ohm

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