A single closed loop contains a cell, a lamp and a resistor. An ammeter placed next to the cell reads 0.30 A. What is the current in the resistor?
0.10 A, because the current is shared between the lamp and the resistor
0.15 A, because the current is shared equally by the two components
0.30 A, because the current is the same at every point in the loop
0.60 A, because the current is added to by each of the two components