The value of current through $2\mathrm{\Omega }$ resistor is

The reading of the ammeter in the circuit below is

The ammeter reading in the circuit below is

In figure, the emf of the cell is $2 \mathrm{V}$ and internal resistance is negligible. The resistance of the voltmeter is $80 \mathrm{\Omega }$. The reading of the voltmeter will be

Calculate the current shown by the ammeter $A$ in the circuit shown below

$A$and $B$  are connected to positive and negative terminals of a cell of emf $12 \mathrm{V}$ respectively. The value of voltage shown by voltmeter of negligible resistance is