a. A 6V battery of negligible internal resistance is connected in series with a 3Ω resistor and a lamp of 2Ω. Calculate the current flowing in the circuit when an ideal ammeter (zero resistance) is used to measure the current.
b. The ammeter is now replaced by one that has a resistance of 1Ω but is still connected in series. Calculate the new current.
c. Comment on whether the second ammeter gives an accurate reading of the current through the lamp and justify your answer briefly.