antonybarsoumlamie antonybarsoumlamie 25-12-2023 Physics contestada Fig. 7.1 The two lamps shown are identical. Each lamp has a potential difference (p.d.) of 3.0V across it and a current of 2.0A in it. PQ is a length of uniform metal wire. The resistance of PQ is R. (i) Calculate the value of R.
